Gems classes

Classification of Gemstones

Natural Gemstones are commonly classified on the basis of Group, Species,and Varieties or by their chemical compositions i.e as silicates , oxides etc.

Group_Name Species Variety
Apatite Apatite(all colors)
Apatite Cat's eye
Andalusite Andalusite (all colors)
Chiastolite
Azurite Azurite (Blue)
Benitoite Benitoite(blue)
Beryl Emerald(Green);with Cr/V/Fe
Green Beryl;withour Cr
Aquamarine(sky blue)
Yellow Beryl
Heliodor(Golden)
Red Beryl
Morganite(pink)
Maxixe Blue Beryl(Fading)
Goshenite(colorless)
Pheonmenal:Star Beryl,Beryl cat's eye,Parti-color Beryl
Chrysoberyl Chrysoberyl Cat's eye
Alexandrite(colour change in reflected light.)
Alexandrite Cat's eye
Transparent brown yellow, green
Chrysocolla Chrysocolla
Corundum Ruby(red)
Sapphire(All colors except Red)
Blue Sapphire
Green Sapphire
Purple sapphire
Yellow Sapphire
Brown Sapphire
White Sapphire
Padparadscha(pink -orange)
Phenomenal, sapphire (color changing), sapphire(parti colored), Star sapphire (6ray), Star ruby(6-ray)
Diamond Diamond(All colors)
Diopside Diopside(Green ,Brown, Black)
Diopside Cat's eye
Star Diaopside(4 ray)
Violane(violet)
Diaspore Diaspore
Diaspore(color changing)
Enstatite Enstatite(Green, Brown)
Enstatie Cat's Eye
Star Enstatite(4/6 ray)
Epidote Epidote
Feldspar Orthoclase Moon Stone (All colors, Sheen)
Moonstone Cat's Eye
Star Moonstone
Transparent Variety
Microline Amazonite (blue gree)
Plagioclase Labradorite(Play of colour)
Spectrolite(Play of colour, black/grey background
Star Labradorite/Labradorite Cat's eye
Sunstone(Aventurine Feldspar)
Sunstone Cat' eye
Transparent variety
Fibrolite (Sillimanite) Fibrolite (Sillimanite);(all colors)
Fibrolite's Cat's eye
Star Fibrolite (Sillimanite)(6 ray)
Flourite Flourite (all colors)
Blue John (massive,banded)
Garnet Almandine Almandine (Purple-red)
Star Almandine
Pyrope Pyrope(Purple-red)
Star Pyrope
Spessartine Spessartine(Yellow-orange)
Grossular Hessonite(Yellow-brown, orange, red)
Green Grossular Garnet (Tsavorite)
Grossular Garnet (All other colours)
Massive Hydrogrossular(TI)
Andradite Demantoid (Green)
Topazolite(Yellow)
Melanite(Black)
Uvarovite Uvarovite(black)
Intermediate Varieties Pyrope-Almandine(Rhodolite)
Pyrope-Spessartine(color changing)
Pyralspite, -Ugrandite
Idocrase Idocrase(Massive and Transparent)
1. Vesuvianite(Transparent) 2. Californite(Massive Green)
Iolite Iolite
Star Iolite
Iolite cat's eye
Bloodshot Iolite
Bloodshot Iolite cat's eye
Jade Jadeite
Nephrite
Nephrite cat's eye
Kyanite Kyanite(all colors)
Kyanite cat's eye
Star Kyanite
Kornerupine Kornerupine(brown-green)
Kornerupine cat's eye
Lapis Lazulli Lapis Lazulli(opaque blue)
Malachite(Banded and unbanded green) Malachite cat's eye
Natural glass Moldavite (green)
Obsidion(black)
Tektite
Silica Glass
Opal Opal (white black;play of color)
Potch Opal(No play of color)
Fire Opal(orange , no play of color)
Bouldar opal/matrix opal
Hydrophane Opal
Opal cat's eye
Peridot Periodt(olive green)
Pyrite Pyrite(Metallic Yellow)
Quartz(crystalline) Rock Crystal(colorless)
Amethyst(violet)
Citrine(Yellow, Golden)
Smoky Quartz(Brown ,Grey)
Rose quartz(Pink)
Praisolite(Green)
Phenomenal varieties:
1 Aventurine quartz
2 Parti color quartz(Ametrine)
Quarz cat' eye
Star quartz
Sagenitic quartz(Rutilated/tourmalinated)
Tiger's eye/Hawk's eye
Chalcedony -unbanded (various colors)
1. Carnelian(red, orange, yellow)
2 Prase(Green)
3 Chrysoprase( Apple Green)
4 Blood stone(Heliotrope)
5 Chrome Chalcedony(Green)
6 Sard(Brown ,orange)
7 Plasma(Green)
-Banded
1 Agate(curved bands)
2 Onyx(straight bands)
3 Fire agate
4 Iris Agate
5 Moss Agate
6 Sardonyx
7 Jasper
Rhodochrosite Rhodochrosite(Pink with white veins)
Transparent variety
Rhodonite Rhodonite(Red with black veins)
Transparent variety
Scapolite Scapolite(all colors)
Scapolite cat's eye
Parti color Scapolite
Serpentine Serpentine
Bowenite
Williamsite
Sinhalite Sinhalite(Brown-green)
Sinhalite cat's eye
Sodalite Sodalite(Blue)
Sphene Sphene(All colors)
Star Sphene
Spinel Spinel(all colors)
Spinel( color changing)
Spine(Parti color)
Star Spinel
Spodumene Kunzite(Pink)
Hiddenite(Emerald green)
Spodumene(all other colors)
Spodumene cat's eye (all colors)
Sugilite Sugilite(Purple,Pink)
Tourmaline Tourmaline(all colors)
Tourmaline cat's eye
Tourmaline (color changing)
Parti colored tourumaline
Star tourmaline
Topaz Topaz(all colors)
Topaz(parti color)
Turquoise Turqouise(opaque sky blue/green)
Spider -web turquoise
Zircon Zircon (all colors)
Zircon cat's eye
Zircon( color changing)
Zoisite Tanzanite(blue)
Thulite(pink)
zoisite(other colors)
Zoisite cat's eye
Zoisite (massive green)

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