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This index gives the first author (in parentheses), the issue, and the first page (plus “ff” for feature articles, to indicate numerous pages following) of the article in which the indexed subject occurs. For Gem News (GN), Gem Trade Lab Notes (GTLN), and Letters (Let) sections, inclusive pages are given for the subject item. The Author Index on page 320 provides the full title and the coauthors (if any) of the articles cited. The inclusive pages for each issue are: Spring (Sp) 1–78; Summer (Su) 79–156; Fall (F) 157–242; Winter (W) 243–320.
M
Madagascar
aquamarine from (GN)Su98:137
chalcedony with goethite inclusions from (GN)W98:295
color-change garnet from (GN)F98:222–223
labradorite from (GN)F98:223–224
liddicoatite from (GN)Sp98:54
pyrope-spessartine from (GN)F98:222
spessartine from (GN)Sp98:52–53
sphene from (GN)Sp98:53
star sapphire from (GN)Su98:140–141
trapiche beryl from (GN)Su98:137–138
Mali
grossular from (GN)F98:221–222
Maw-sit-sit
from Myanmar (GN)Sp98:58–59
Maxixe, see Beryl
Mexico
feldspar from (GN)Sp98:57
Mining and exploration
large-scale mining of emeralds in Colombia (GN)F98:220–221
see also Diamond
Moissanite, synthetic
from Russia (GN)Sp98:55
submitted for diamond grading (GTLN)F98:215–216
Montana, see United States
Mother-of-pearl, see Assembled stones
Museums and gem collections
birthstone exhibit at Carnegie Museum of Natural History (GN)Su98:145
Nature of Diamonds exhibit at American Museum of Natural History (GN)Sp98:62
Myanmar
hackmanite from (GN)F98:223
jade simulant from (GN)F98:229
maw-sit-sit from (GN)Sp98:58–59
spinel with color zoning from (GTLN)W98:288–289
topaz with etch decorations from (GTLN)W98:297–298
N
Namibia
aquamarine and other beryl from (Cairncross)Su98:114ff
topaz from (Cairncross)Su98:114ff
tourmaline from (GN)Sp98:54
New Zealand
cultured abalone blister pearls from (Wentzell)F98:184ff
Nigeria
tourmaline from (GN)W98:298–299
Nomenclature and classification
of bicolored corundum (GTLN)Sp98:51–52
of “flame agate” (GN)Su98:136–137
of opal (GN)Sp98:59
O
Obituaries
Ashbaugh, Charles E. III (GN)Sp98:63
Foord, Eugene Edward (GN)Sp98:63
Obsidian, see Glass
Opal
cat’s-eye—(GTLN)Sp98:46; from Tanzania (GN)Su98:138–140
identification of, in the field (GN)Sp98:59
nomenclature of (GN)Sp98:59
polymer-impregnated, natural and synthetic, flammability of (GN)W98:299–300
Oregon, see United States
P
Pakistan
rubies from Kashmir region (GN)Sp98:59–60
Pearl, cultured
abalone blister pearls from New Zealand (Wentzell)F98:184ff
auction of Indonesian South Seas pearls (GN)W98:302
with dolomite beads (GTLN)Su98:130–131
with faceted surface (GTLN)W98:287
freshwater (GTLN)F98:216
at 2nd International Jewellery Show in Japan (GN)F98:224–225
with treated black color (GTLN)Su98:131
Phosphorescence
of type IIb blue diamonds (King)W98:246ff
Polymer
in opal (GN)W98:299–300
Pyrope-spessartine, see Garnet
Q
Quartz
buff-top faceted stones (GN)Sp98:55-56
“crystal ball” (GTLN)F98:216–217
drusy, coated with gold (GN)Su98:142–143
with inclusions of rutile that slide (GN)F98:225–226
Raman spectrum of, in historical religious object (Hänni)Su98:102ff
see also Amethyst, Citrine
Quartz, cryptocrystalline
see Chalcedony
Quartz, synthetic
ametrine, from Russia (GN)Sp98:60–61
pink, from Russia (Balitsky)Sp98:34ff
Quartzite
dyed to imitate sugilite (GTLN)Su98:131–132
R
Radioactivity
of rubies (GN)F98:227–228
Raman spectrometry, see Spectrometry, Raman
“Recrystallized” ruby, see Ruby, synthetic
Rossmanite
new species of tourmaline (GN)F98:230; erratum (GN)W98:302
Ruby
with double star (GTLN)F98:217
from Kashmir region of Pakistan (GN)Sp98:59–60
radioactive (GN)F98:227–228
from Russia (GN)Su98:140; erratum (GN)F98:230
surface evidence of treatment in (GTLN)Sp98:46–47
trace-element chemistry to separate from synthetic (Muhlmeister)Su98:80ff
“trapiche” from Vietnam (GN)F98:225
see also Corundum
Ruby, synthetic
trace-element chemistry to separate from natural (Muhlmeister)Su98:80ff
Russian Federation (includes Karelia, Russia, Sakha [Yakutia], Tajikistan, Ukraine, Uzbekistan)
diamond crystals from (GN)Sp98:50
ruby from the Polar Urals, Siberia (GN)Su98:140; erratum [location actually west of Siberia] (GN)F98:230
sapphire from the Ural Mountains (GN)F98:226
synthetic moissanite from (GN)Sp98:55
synthetic quartz from—ametrine (GN)Sp98:60–61; pink (Balitsky)Sp98:34ff
S
Sapphire
heating of near-colorless geuda from Sri Lanka (GN)W98:293
heat treated, with internal diffusion (GTLN)Sp98:47–48
from Montana, with gold in surface depressions (GN)W98:296–297
from Russia (GN)F98:226
star, from Madagascar (GN)Su98:140–141
see also Corundum
Sapphire, synthetic
diffusion treatment of (GN)W98:301–302
Sapphirine
brownish orangy red, from Tanzania (GTLN)Su98:132–133
donated by G&G reader (GN)F98:226
Scapolite
asterism in (GTLN)Sp98:48
Serpentine
translucent green, from Afghanistan (GN)W98:297
Simulants, see specific gem materials
Southeast Asia
see Indonesia, Vietnam
Spectrometry, Raman
of barite inclusions in fluorite (Koivula)W98:281ff
of historical objects from Basel Cathedral (Hänni)Su98:102ff
of inclusions in diamond (GTLN)F98:214–215, W98:285–286
Spectroscopy, infrared
of type IIb blue diamonds (King)W98:246ff
of synthetic pink quartz (Balitsky)Sp98:34ff
Spectroscopy, UV-visible
of aquamarine and topaz from Klein Spitzkoppe, Namibia (Cairncross)Su98:114ff
of type IIb blue diamonds (King)W98:246ff
Spessartine, see Garnet
Sphene
from Madagascar (GN)Sp98:53
Spinel
with color zoning, from Myanmar (GTLN)W98:288–289
Raman spectrum of, in historical religious object (Hänni)Su98:102ff
from Vietnam (GN)Sp98:53–54
Sri Lanka
“almost blue” color-change garnet from (GN)Su98:138
geologic maps of (GN)Sp98:62
Star, see Asterism; specific gem materials
Sugilite
simulated by dyed quartzite (GTLN)Su98:131–132
Synthetics
gallium phosphide imitating colored diamond (GN)F98:228–229
growth of synthetic amethyst over round seeds (GN)Sp98:54–55
see also specific gem materials
Switzerland
gemstones from (GN)Sp98:60
historical objects from Basel Cathedral (Hänni)Su98:102ff
T
Tanzania
cat’s-eye opal from (GN)Su98:138–140
chrysoberyl from Tunduru (GTLN)F98:212–213
fund for miners’ relief after tanzanite mines flooded (GN)Su98:145
sapphirine from Tunduru (GTLN)Su98:132–133
Tanzanite, see Tanzania
“Titania Gemstones,” see Coating
Titanium, see Coating
Topaz
natural-color green (GTLN)Sp98:48–49
inclusions—in etch-decorated (GN)W98:297–298; in irradiated (GN)W98:300
from Klein Spitzkoppe, Namibia (Cairncross)Su98:114ff
surface-treated (GN)Su98:143–144
Tourmaline
liddicoatite from Madagascar (GN)Sp98:54
from Namibia (GN)Sp98:54
from Nigeria (GN)W98:298–299
rossmanite, new species of (GN)F98:230
Treatment
flammability of polymer-impregnated natural and synthetic opal (GN)W98:299–300
see also Diamond, treatment; Diffusion treatment; specific gem materials
“TrueRuby,” see Ruby, synthetic
Tucson Gem and Mineral Shows
highlights of (GN)Sp98:50ff
Twinning
in iolite (GN)W98:295–296
in labradorite feldspar (GN)F98:223–224
U
Ultraviolet luminescence, see Fluorescence
Ultraviolet-visible spectroscopy, see Spectroscopy, UV-visible
United States
amethyst from Arizona (GN)F98:219–220
benitoite from California (GN)Su98:137
coral from Alaska (GN)Sp98:51
danburite from San Diego County, California (FN)F98:220
feldspar from Oregon and Utah (GN)Sp98:57
fluorite from Illinois with
barite inclusions (Koivula) W98:281ff
lapis lazuli from Colorado (GN)F98:224
sapphire from Montana with gold in surface depressions (GN)W98:296–297
V
Vietnam
bicolored corundum from (GTLN)Sp98:51-52
spinel from (GN)Sp98:53–54
“trapiche” ruby from (GN)F98:225
W
Weight
estimation of, in colored gemstones (Carmona)F98:202ff
X
X-ray fluorescence spectrometry
for chemical analysis of rubies (Muhlmeister)Su98:80ff
X-ray topography
of diamonds cut from the same rough (Sunagawa)W98:270ff
Y
Yemen
andradite garnet from (GN)F98:220
Z
Zircon
in jadeite (GTLN)Sp98:45
Zoning
of color in blue diamond (King)W98:246ff
of color in diamond (GTLN)W98:285
of color in spinel (GTLN)W98:288–289
of color in pink quartz (Balitsky)Sp98:34ff
Appears on pages 318-320
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