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 424 provides the full title and the coauthors (if any) of the articles cited. The inclusive pages for each issue are: Spring (Sp) 1–94; Summer (Su) 95–188; Fall (F) 189–290; Winter (W) 291–424.

M

Madagascar

copal from (GN)Sp00:67–68

gem localities in (GN)Su00:165–167, (Shigley)W00:292ff

lapidary facilities in (GN)F00:267–268

orbicular jasper from (GN)Sp00:69

sapphire—from Antsiranana Province (Schwarz)F00:216ff; from Ilakaka (GN)Su00:165–167

sphene from (GN)Su00:165–167

spinel from Ilakaka (GN)Su00:169–171

zircon, large faceted brown, from Ilakaka (GN)Sp00:74

Malawi

ruby and sapphire from Chimwadzulu Hill (GN)Sp00:71–73

Mantle tissue

as nuclei in Chinese freshwater cultured pearls (Scarratt) Su00:98ff

Marketing and distribution

impact of branding and the media on jewelry trends in the 1990s (Misiorowski)W00:398ff

see also specific gem material

Maw-sit-sit

composition of (Hughes)Sp00:2ff

Metals

developments in the 1990s—in jewelry trends (Misiorowski) W00:398ff; in testing technology (Johnson)W00:380ff

Mexico

black cultured pearls from (GTLN)Sp00:64–65

Microscopy

of new laser treatment of diamonds (McClure)Su00:138ff

see also Growth structures, Scanning electron microscopy

Mining and exploration

of jadeite from Myanmar (Hughes)Sp00:2ff

of lapis lazuli from Chile (Coenraads)Sp00:28ff

of ruby and sapphire from Afghanistan (Bowersox)Su00:110ff

of sapphire from Antsiranana, Madagascar (Schwarz)F00:216ff

Moissanite, synthetic

as a diamond simulant—black (GTLN)F00:256–257; developments in the 1990s (Koivula)W00:360ff

Moonstone, see Feldspar

Myanmar

jadeite from (Hughes)Sp00:2ff

N

Nephrite

from British Columbia, Canada (GN)Sp00:69–70

from pre-Columbian archeological sites in Antigua, West Indies (Murphy)F00:234ff

see also Jade

Nevada, see United States

Nomenclature

in disclosure of enhancements (McClure)W00:336ff

of jade (Hughes)Sp00:2ff

use of natural (Let)Su00:97

“Nuumite”

iridescent orthoamphibole from Greenland (GN)Sp00:73–74

O

Obituary

Latendresse, John (Let)F00:191

Opal

coating, dyeing, and impregnation of, in the 1990s (McClure)W00:336ff

geology of Australian deposits (GN)F00:266–267

localities of the 1990s (Shigley)W00:292ff

quadruplet, imitating boulder opal (GN)F00:272–273

Opal, synthetic

developments in the 1990s (Koivula)W00:360ff

Orthoamphibole

iridescent (“Nuumite”), from Greenland (GN)Sp00:73–74

P

Pakistan

bicolored cat’s-eye beryl from (GN)Su00:163–164

Pearl

coated (GTLN)Sp00:65

localities of the 1990s (Shigley)W00:292ff

Melo (nonnacreous) “pearls” (Shigley)W00:292ff

Pearl, cultured

baroque (GTLN)Su00:158–159

black—from Baja California, Mexico (GTLN)Sp00:64–65

Chinese freshwater, nuclei in (Scarratt)Su00:98ff, (Let)F00:191

coating and dyeing of, in the 1990s (McClure)W00:336ff

freshwater—dyed (GN)Sp00:75

Kasumiga, from Japan, with Akoya cultured pearl nuclei (GN)Su00:167–168

keshi, from Tahiti and Australia (GN)Sp00:70–71

localities of the 1990s (Shigley)W00:292ff

Pegasus diamonds, see Diamond treatment—HPHT

Peridot

localities of the 1990s (Shigley)W00:292ff

Photography

of color-change garnets (Let)Su00:97

Photoluminescence

developments in the 1990s (Johnson)W00:380ff

of GE POL HPHT-processed diamonds (Fisher)Sp00:42ff, (Smith)F00:193ff

PIXE, proton-induced X-ray emission

use in gem identification and metals testing in the 1990s (Johnson)W00:380ff

Platinum

in jewelry of the 1990s (Misiorowski)W00:398ff

Poland

Baltic amber with lizard inclusion from (GN)Su00:162–163

Pre-Columbian gems

quartz family, nephrite, serpentine, shell (calcite), and turquoise from archeological sites in Antigua, West Indies (Murphy)F00:234ff

Prospectors and Developers Association of Canada (PDAC) conference

in Toronto, diamond presentations at (GN)Su00:160–161

Q

Quality factors

in jadeite (Hughes)Sp00:2ff

in lapis lazuli (Coenraads)Sp00:28ff

Quartz

amethyst, carnelian, chalcedony, chert, jasper, and transparent colorless, from pre-Columbian archeological sites in Antigua, West Indies (Murphy)F00:234ff

ametrine, with layers of smoky quartz (GN)Su00:163

aventurine, from Greenland (GN)Sp00:73–74

coating, dyeing, and irradiation of, in the 1990s (McClure)W00:336ff

with emerald intergrowth (GN)Su00:164–165

localities of the 1990s (Shigley)W00:292ff

Quartz, synthetic

amethyst, ametrine, and pink quartz—synthesis developments in the 1990s (Koivula)W00:360ff

R

Raman spectrometry, see Spectrometry, Raman

Romania

quartz-family gem materials from (GN)F00:266–267

Ruby

from Afghanistan (Bowersox)Su00:110ff

from Colombia (GN)F00:268

from Malawi, update on (GN)Sp00:71–73

trapiche, from Myanmar (GN)Su00:168–169

treatment of—developments in the 1990s (McClure)W00:336ff; with heat and resultant fillings (GN)Sp00:75–76, (GTLN)F00:257–259

see also Corundum

Ruby, synthetic

developments in the 1990s (Koivula)W00:360ff

Russia

amphibole rock from (GN)Sp00:66–67

mining and marketing of diamonds from (GN)Su00:161–162

pyritized ammonite from (GN)Sp00:70–71

synthetic gems from, in the 1990s (Koivula)W00:360ff

S

Sapphire

from Afghanistan (Bowersox)Su00:110ff

from Colombia (GN)F00:268

concave faceting of (GN)F00:273

from Madagascar—Antsiranana Province (Schwarz)F00:216ff; heat treatment of (GN)Su00:165–167

from Malawi, update on (GN)Sp00:71–73

treatment of, developments in the 1990s (McClure)W00:336ff

see also Corundum

Sapphire, synthetic

developments in the 1990s (Koivula)W00:360ff

Scanning electron microscopy

to study fillers and surface alterations in heat-treated Mong Hsu rubies (GTLN)F00:257–259

Shell

chiton used in jewelry (GN)Sp00:67

as ornamental objects from pre-Columbian archeological sites in Antigua, West Indies (Murphy)F00:234ff

Simulants

developments in the 1990s (Koivula)W00:360ff

see also specific gem material

Spectrometry, laser ablation–inductively coupled plasma–mass (LA-ICP-MS)

use for gem identification in the 1990s (Johnson)W00:380ff

Spectrometry, Raman

developments in the 1990s (Johnson)W00:380ff

of haüyne from Germany (Kiefert)F00:246ff

see also Photoluminescence, Inclusions

Spectrometry, X-ray fluorescence

developments in the 1990s (Johnson)W00:380ff

of haüyne from Germany (Kiefert)F00:246ff

of ruby and sapphire from Afghanistan (Bowersox)Su00:110ff

of sapphire from Madagascar (Schwarz)F00:216ff

Spectroscopy, infrared

developments in the 1990s (Johnson)W00:380ff

of diamond with blue zoning (GTLN)Su00:156–157

of haüyne from Germany (Kiefert)F00:246ff

of HPHT-processed diamonds—decolorized type IIa GE POL (Fisher)Sp00:42ff, (Smith)F00:193ff; yellow to green (Reinitz)Su00:128ff

of ruby from Afghanistan (Bowersox)Su00:110ff

Spectroscopy, UV-visible-NIR

developments in the 1990s (Johnson)W00:380ff

of haüyne from Germany (Kiefert)F00:246ff

of HPHT-processed diamonds—decolorized type IIa GE POL (Fisher)Sp00:42ff, (Smith)F00:192ff; yellow to green (Reinitz)Su00:128ff

of ruby and sapphire from Afghanistan (Bowersox)Su00:110ff

of sapphire from Antsiranana, Madagascar (Schwarz)

of purple to purplish red taaffeite (Schmetzer)Sp00:50ff

Sphene

from Madagascar (GN)Su00:165–167

Spinel

localities of the 1990s (Shigley)W00:292ff

from Madagascar (GN)Su00:169–171

synthetic, developments in the 1990s (Koivula)W00:360ff

Sri Lanka

dumortierite from (GTLN)Sp00:62–63

Sugilite

lavender, with green spots colored by chromium (GN)F00:268–269

Synthetics

developments in the 1990s (Koivula)W00:360ff, (Johnson)W00:380ff

see also specific gem material

T

Taaffeite

Tahiti

keshi cultured pearls from (GN)Sp00:70

Tanzanite

localities of the 1990s (Shigley)W00:292ff

Titanite, see Sphene

Topaz

localities of the 1990s (Shigley)W00:292ff

treatment of, in the 1990s (McClure)W00:336ff

Tourmaline

with apparent change of color (GN)F00:270–271

cuprian, from Paraíba, Brazil—(GTLN)F00:259; new locality in (GN)Sp00:73; update on mining and production of (GN)F00:269–271

localities of the 1990s (Shigley)W00:292ff

simulated by bicolored synthetic beryl (GN)Sp00:76–77

Treatment

developments in the 1990s (McClure)W00:336ff, (Johnson)W00:380ff

wax, of jadeite from Myanmar (Hughes)Sp00:2ff

see also Coating; Dyeing; Filling, fracture or cavity; Heat treatment; specific gem material

Tucson Gem and Mineral Shows

highlights of (GN)Sp00:66–77

Tugtupite

from Greenland (GN)Sp00:73–74

U

Ultraviolet–visible–near-infrared spectroscopy, see Spectroscopy, UV-visible-NIR

United States

Arizona, hematite from (GN)Sp00:68–69

California, fresnoite from San Benito County (GN)F00:264–266

Hawaii, coral from (GN)F00:263–264

Nevada, “ghost jade” from (GN)Sp00:66–67

X

X-radiography

of baroque cultured pearls (GTLN)Su00:158–159

of Chinese freshwater cultured pearls (Scarratt)Su00:98ff

of Kasumiga freshwater cultured pearls from Japan (GN)Su00:167–168

X-ray topography

developments in the 1990s (Johnson)W00:380ff

of GE POL HPHT-processed diamonds (Smith)F00:192ff

Z

Zircon

large faceted brown, from Ilakaka, Madagascar (GN)Sp00:74

Zoisite

bicolored purplish pink and yellow (GTLN)Su00:159

Zoning

growth features—in ruby and sapphire from Afghanistan (Bowersox)Su00:110ff; in sapphire from Antsiranana, Madagascar (Schwarz)F00:216ff