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Volume 17,
February 1989 - November 1991
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Volume 17, Number 1, February 1989
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OPTRONICS™ GEMMOLOGICAL INSTRUMENTS
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J. Snow,
G. Brown
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3
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NEW EMERALDS IN BRAZIL
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D. Schwarz
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4
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THE MINING OF SAPPHIRES
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T.J. Nunan
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7
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ANCIENT MILLIPEDES
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J.I. Koivula
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13
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GREENBUSHES SPODUMENE-QUARTZ
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G. Brown, H. Bracewell
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14
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BLACK-DYED SYNTHETIC OPAL
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G. Brown, P. Callaway
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24
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| GEMMOLOGY STUDY CLUB LAB REPORTS
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27
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Volume 17, Number 2, May 1989
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| EDITORIAL
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42
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COLOUR OF CHRYSOPRASE IN THE LIGHT OF MINERALOGICAL STUDIES
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W. Heflik,
B. Kwiecinska, L. Natkaniec-Nowakvynsn
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43
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AUSTRALIAN COLOUR-CHANGING SAPPHIRE
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G. Brown,
S.M.S. Kelly
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47
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SILICIOPHITE: AUSTRALIAN CATS-EYE OPAL
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G. Brown
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48
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GEMS OF THE MUD TANK CARBONATITES
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G. Brown,
H. Bracewell,
J. Snow
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52
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GEMS AROUND AUSTRALIA, PART 2
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H. Bracewell
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60
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THE SNOW DIAMOND LIGHT
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G. Brown
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63
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| GEMMOLOGY STUDY CLUB LAB REPORTS
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65
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Volume 17, Number 3, August
1989
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| MOURNING JEWELLERY
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J.C. Birmingham
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82
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| CHARACTERISTICS OF BURMESE SPINEL
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Tin Hlaign
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84
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OBSERVATIONS ON HELENITE
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G. Brown,
J. Snow
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88
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SYNTHETIC PERICIASE
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S.M.B. Kelly,
G. Brown
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90
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STUDY OF "OPALITIE" AND "OPAL ESSENCE"
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J.I. Koivula
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93
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DAYBORO VARISCITE
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G. Brown
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98
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YUNDAMINDERA 'FIRE' OPAL
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G. Brown,
H. Bracewell
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101
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RUSSIAN HYDROTHERMALLY-GROWN EMERALD
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Study Club Report
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103
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| 'GEMDATA' GEM IDENTIFICATION PROGRAM
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G. McCaughtrie, - REPLY P. Read
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107
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Volume 17, Number 4, November 1989
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JACK SNOW MEMORIAL ISSUE
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JACK SNOW - THE PRACTICAL MAN
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G. Tombs
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115
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INTRODUCTION TO THE MEMORIAL ISSUE
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G. Brown
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117
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USING THE SPECTROSCOPE
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S.M.B. Kelly
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118
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ECONOMICAL MICROSCOPES FOR GEMMOLOGISTS
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Instrument Evaluation Committee
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120
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THE USE OF THE FIGURE-O-SCOPE (Reprint)
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J. J. Snow
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122
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WAVE HILL PREHNITE
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H. Bracewell
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127
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INAMORI STONES ROUGH
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J. Snow,
G. Brown
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132
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VISUAL OPTICS
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A. Hodgkinson
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137
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ARTISTRY THROUGH THE MICROSCOPE
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J.I. Koivula
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139
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THE USE OF ISOTOPES IN EXPLORATION
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A.F. Wilson
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142
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SOME RARE GEMSTONES
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M. O’Donoghue
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147
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IMITATION OPALISED SHELLS
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J.I. Koivula,
R.C. Kammering
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148
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A SYNTHETIC BY ANY OTHER NAME
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P. Read
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153
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GEM TESTING INSTRUMENTS
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R. Hughes
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159
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Volume 17, Number 5, February 1990
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EMERALD WORKINGS IN COLOMBIA
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D. Schwarz
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168
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A DARK FIELD ILLUMINATOR
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T. Linton,
G. Brown
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171
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ASSESSMENT OF THE GEM IDENTIFICATION SYSTEM
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G. McCaughtrie
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172
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AN INTERESTING CULTURED BLISTER PEARL
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R.C. Kammerling, J.I. Koivula,
R.E. Kane
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174
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A KENYAN GEM FELDSPAR
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C.R. Bridges,
G. Graziani,
E. Cubelin
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177
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THE WESTERN AUSTRALIAN PEARLING INDUSTRY
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F.S. Malone,
D.A. Hancock,
B. Jeffriess
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184
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THE XXII INTERNATIONAL GEMMOLOGICAL CONFERENCE
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E.R. Segnit
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193
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KNISCHKA-CREATED RUBIES
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G. Brown,
S.M.B. Kelly
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199
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MTOROLITE
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G. Phillips,
G. Brown
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205
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Volume 17, Number 6, May 1990
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PRESIDENTIAL ADDRESS
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G. Brown
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216
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BIRON™ SYNTHETIC PINK BERYL
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G. Brown
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219
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GEMMOLOGY STUDY CLUB LAB REPORTS
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221
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MT. PHILIP AVENTURESCENT IOLITE
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G. Brown,
H. Bracewell
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231
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RARE-EARTHS
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T. Troiani
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235
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BURMESE ZIRCON
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U. Tin Hlaing
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237
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TALKIN' 'BOUT GEM INSTRUMENTS PART II
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R.W. Hughes
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242
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Volume 17, Number 7, August 1990
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SOME RARE IVORIES
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G. Brown
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256
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CHICKEN-BLOOD STONE: AN UNUSUAL GEM
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J.F. Guo,
F.Q. Wang
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262
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GEMS AROUND AUSTRALIA - PART III
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H. Bracewell
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265
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AN UNUSUAL AQUAMARINE
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J.I. Koivula,
R.C. Kammerling
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270
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MEDO HAND™ VACUUM TWEEZERS
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Instrument Evaluation Committee
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272
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TREASURE CHEST GEM TESTER
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Instrument Evaluation Committee
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274
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MYANMAR DIAMONDS FROM NORTH TO SOUTH
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U. Tin Hlaing
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278
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GEMMOLOGY STUDY CLUB LAB REPORTS
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279
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Volume 17, Number 8, November 1990
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MULTIPLE CHATOYANCY IN SAPPHIRE
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G. Pearson
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296
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ESR SPECTRUM OF BIRON™ EMERALD
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D.R. Hutton,
G.J. Troup
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299
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PRESIDIUM™ DIAMETER - System Berger
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Instrument Evaluation Committee
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301
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QUEENSLAND CHRYSOPRASE
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N.J. Krosch
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303
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RARE BALER SHELL PEARL
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G. Brown,
S.M.B. Kelly
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307
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SNAIL SHELLS IN AMBER
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J.I. Koivula
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309
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IMITATION CHICKEN-BLOOD STONE
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G. Brown,
S.M.B. Kelly,
C. Sutherland,
P. Callaway
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311
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CHRYSOPRASE FROM BRAZIL
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R.C. Kammerling, J.I. Koivula
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313
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FLUX-GROWN SYNTHETIC SPINEL
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G. Brown,
S.M.B. Kelly,
R. Sneyd
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315
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PRESIDIUM™ DIAMOND MINI-MATE
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Instrument Evaluation Committee
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318
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ARGYLE DIAMONDS
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G.A. Tombs
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321
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GEMMOLOGY STUDY CLUB LAB REPORTS
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325
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Volume 17, Number 9, February 1991
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VERNEUIL SYNTHETIC SAPPHIRE
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Gemmology Study Club
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344
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GEM DEPOSITS OF S-W SRI LANKA
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T.G. Pemadasa
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347
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ARGYLE CHAMPAGNE & COGNAC DIAMONDS
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G. Brown, J. Chapman
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350
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A PLASTIC-COATED, SUGAR-TREATED OPAL
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R.C. Kammerling, J.I. Koivula
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352
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INEXPENSIVE CONVERSION UNIT
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Instrument Evaluation Committee
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355
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RADIOACTIVITY IN THE MOGOK AREA
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U.Tin Hlaing, Z. Aung, W. Htein
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356
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THE GOLD-METER™
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Instrument Evaluation Committee
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360
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GEMMOLOGY STUDY CLUB LAB REPORTS
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369
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SOME AUSTRALIAN TURQUOISE DEPOSITS
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G. Brown
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369
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GEMS AROUND AUSTRALIA - IV
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H. Bracewell
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377
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PADPARADSCHA
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A. Hodgkinson
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378
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EMERALDOLITE AND OOULONGOLITE
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G. Brown,
G. Tombs
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381
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Volume 17, Number 10,
May
1991
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QUALITY ASSESSMENT
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G. Brown (Presidential Address)
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393
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DARK-FIELD LOUPE
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Instrument Evaluation Committee
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396
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TASMANIAN GEM CORALS
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R.W. Grigg, G. Brown
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399
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TOURMALINES FROM WESTERN AUSTRALIA
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B.J. Darby
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405
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LECHLEITNER COATED CORUNDUMS
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Gemmology Study Club
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408
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GEM GARNETS FROM HORSE GULLY, N.S.W.
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R.R. Coenraads
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412
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GEMMOLOGY STUDY CLUB LAB REPORTS
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417
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A FADED AMETHYST NECKLACE
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Gemmology Study Club
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426
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POLAROID SPECTRA SYSTEM
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Instrument Evaluation Committee
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429
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Volume 17, Number 11,
August
1991
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NEW THEORY ON EMERALD FORMATION
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J.I. Keeling
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440
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A FURNACE FOR HEAT-TREATMENT
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R.N.
Ediriweera, S.I. Perera,
W. Weerasinghe
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443
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COMPARISON BETWEEN KENYAN, AUSTRALIAN AND
SRI LANKAN SAPPHIRES
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G. Tombs
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446
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RECONSTRUCTED LAPIS
LAZULI
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R.C.
Kammerling, J.I. Koivula,
E. Fritsch
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450
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GEMS AROUND AUSTRALIA - PART 5
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H. Bracewell
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454
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A NEW SURFACE DIFFUSION-TREATED SAPPHIRE
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G. Brown, R. Beattie
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457
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QUEENSLAND SAPPHIRE
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N.J.
Krosch, W. Cooper
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460
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CORAL IDENTIFICATION KIT
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Instrument Evaluation Committee
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465
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SYNTHETIC RED SPINEL
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A Hodkinson
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466
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SHIBUYA 150 REFRACTOMETER
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Instrument Evaluation Committee
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468
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GEM GARNETS FROM ANTARCTICA
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R. Brightman
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470
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GEMMOLOGY STUDY CLUB LAB REPORTS
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475
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Volume 17, Number 12, November 1991
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|
AUSTRALIAN EMERALDS
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D. Schwarz
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488
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PLASTIC IMITATION OPALS FROM THAILAND
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R.C. Kammerling, J.I, Koivula,
E. Fritsch
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498
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GEMS AROUND AUSTRALIA: Part 6
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H. Bracewell
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502
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HYDROTHERMALLY SYNTHESIZED AGATE-LIKE CRYSTALS
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M. Hosaka
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503
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BURMA-TYPE RUBIES FROM VIETNAM
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Dr U. Henn
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505
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NEW MYANMAR RUBY DEPOSIT
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U. Tin Hlaing
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509
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QUEENSLAND SAPPHIRE: II
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N.J. Krosch,
W. Cooper
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511
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LECHLEITNER SYNTHETICS
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K. Schmetzer
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516
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GEMMOLOGY STUDY CLUB REPORTS
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|
526
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