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 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)