Gem Directory
Complete Identification Guide // Beautiful Specimens
Available in the USA
Gemstones
Agate
Various colors
Banded chalcedony.
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Amblygonite
White, Yellow, Green
Lithium aluminum phosphate.
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Amethyst
Purple to Violet
Violet quartz variety.
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Apatite
Green, Blue, Yellow
Calcium phosphate.
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Aquamarine
Pale blue to light green-blue
Blue beryl variety. Durable and clear.
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Beryl
Various
Beryllium aluminum silicate.
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Black Fire Opal
Dark body with rainbow flash
Hydrated silica with color play.
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Carnelian
Red, Orange
Red-orange chalcedony.
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Chalcedony
Various
Microcrystalline quartz.
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Chrysoprase
Apple Green
Green chalcedony.
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Citrine
Yellow to brownish-orange
Yellow quartz variety.
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Corundum
Various
Aluminum oxide.
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Diamond
Colorless, Various
Carbon.
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Diamonds
Colorless, Yellow, Brown
Hardest known natural material. Carbon lattice.
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Emeralds
Green to bluish-green
Green beryl variety. High value target.
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Fire Agate
Brown with fire
Chalcedony with iridescence.
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Geode
Various
Hollow rock with crystals.
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Goshenite
Colorless
Colorless beryl.
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Herkimer Diamond
Clear
Double-terminated quartz.
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Hiddenite
Green
Green spodumene.
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Jade
Green, White, Lavender
Nephrite or jadeite.
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Jadeite
Green, White, Lavender
Sodium aluminum silicate.
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Kunzite
Pink to Purple
Pink spodumene variety.
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Labradorite
Gray with blue/green flash
Feldspar with labradorescence.
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Lazulite
Blue
Magnesium aluminum phosphate.
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Lepidolite
Pink, Purple
Lithium mica.
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Milky Quartz
White
White opaque quartz.
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Morganite
Pink to Peach
Pink beryl variety.
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Moss Agate
Green with patterns
Chalcedony with inclusions.
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Nephrite
Green, White
Calcium magnesium silicate.
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Onyx
Black, White
Black chalcedony.
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Peridot
Yellow-green to Green
Olivine gem variety.
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Petrified Wood
Various colors
Fossilized wood.
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Phantom Quartz
Clear with phantoms
Quartz with growth patterns.
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Red Beryl
Red
Red beryl variety.
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Rose Quartz
Pink
Pink quartz variety.
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Rubies
Red to pinkish-red
Red corundum variety.
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Ruby
Red
Red corundum.
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Sapphire
Blue, Yellow, Pink
Non-red corundum.
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Sapphires
Blue, Yellow, Pink, Green, White
Corundum variety in non-red colors.
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Sard
Brown, Red
Brown chalcedony.
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Sardonyx
Red, White, Brown
Banded agate.
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Smoky Quartz
Brown to Black
Brown quartz variety.
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Sunstone
Clear, Champagne, Pink, Red
Feldspar with copper schiller.
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Thunderegg
Various
Nodule with agate center.
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Topaz
Colorless, Blue, Yellow, Pink
Aluminum silicate fluoride. High clarity gem.
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Tourmaline
Black, Pink, Green, Watermelon
Boron silicate mineral.
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Turquoise
Blue to Green
Copper aluminum phosphate.
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Turquoise-Variscite
Blue and Green
Mixed phosphate minerals.
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Variscite
Green
Aluminum phosphate.
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Wavellite
Green, White
Aluminum phosphate.
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Zircon
Colorless, Blue, Brown, Red
Zirconium silicate. High dispersion.
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Azurite
Deep Blue
Copper carbonate.
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Azurite-Malachite
Blue and Green
Mixed copper minerals.
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Barite
Colorless, White, Blue
Barium sulfate.
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Bornite
Purple-Brown
Copper iron sulfide.
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Calcite
Colorless, White, Various
Calcium carbonate.
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Celestite
Blue, White
Strontium sulfate.
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Chalcopyrite
Brass Yellow
Copper iron sulfide.
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Chrysocolla
Blue to Green
Copper silicate.
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Covellite
Indigo Blue
Copper sulfide.
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Fluorite
Purple, Green, Blue, Yellow
Calcium fluoride.
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Galena
Silver Gray
Lead sulfide.
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Garnet
Deep Red, Green, Orange
Silicate mineral group.
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Hematite
Black, Silver, Red
Iron oxide.
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Jasper
Red, Yellow, Brown, Green
Opaque impure silica.
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Malachite
Green
Copper carbonate.
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Marcasite
Pale Yellow
Iron sulfide polymorph.
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Obsidian
Black, Brown, Rainbow
Volcanic glass.
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Pyrite
Brass Yellow
Iron sulfide.
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Quartz
Clear, Milky, Rose, Smoky
Abundant mineral in crust.
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Rhodochrosite
Pink to Red
Manganese carbonate.
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Rhodonite
Pink to Red
Manganese silicate.
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Serpentine
Green, Yellow
Hydrated magnesium silicate.
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Smithsonite
Green, Blue, Pink
Zinc carbonate.
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Sphalerite
Yellow, Brown, Black
Zinc sulfide.
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Vanadinite
Red, Orange, Yellow
Lead vanadate.
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Wulfenite
Orange, Yellow, Red
Lead molybdate.
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Gemstones
Alexandrite
Green (day) to Red (night)
Color-changing chrysoberyl.
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Aventurine
Green, Blue
Quartz with inclusions.
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Blue Lace Agate
Blue and white
Blue banded agate.
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Cat's Eye Chrysoberyl
Yellow with line
Chatoyant chrysoberyl.
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Chrysoberyl
Yellow, Green
Beryllium aluminum oxide.
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Crazy Lace Agate
Various colors
Complexly banded agate.
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Falcon's Eye
Gray-Blue
Gray-blue tiger's eye.
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Hawk's Eye
Blue
Blue tiger's eye.
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Heliodor
Yellow
Yellow beryl.
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Iolite
Blue to Violet
Cordierite gem variety.
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Lapis Lazuli
Deep Blue
Lazurite rock.
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Moonstone
White, Peach, Blue
Feldspar with adularescence.
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Pezzottaite
Pink
Cesium beryl.
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Prasiolite
Green
Green quartz variety.
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Rutilated Quartz
Clear with gold
Quartz with rutile needles.
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Sodalite
Blue
Sodium aluminum silicate.
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Spinel
Red, Pink, Blue, Purple
Magnesium aluminum oxide.
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Star Ruby
Red with star
Asteriated ruby.
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Star Sapphire
Blue with star
Asteriated sapphire.
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Tanzanite
Blue to Purple
Blue zoisite variety.
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Tiger's Eye
Golden Brown
Chatoyant quartz.
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Tourmalinated Quartz
Clear with black
Quartz with tourmaline.
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Triphane
Yellow
Yellow spodumene.
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