Agatesuperiorminnesota

Agate, Lake Superior

Usual Treatments - Dyeing
Hardness - 6.5 to 7
Major Sources - Minnesota, Iowa, Wisconsin, South & North Dakota

Alexandrite

Alexandrite

Usual Treatments - None
Hardness - 8.5
Color Change
Major Sources - Brazil, Tanzania, Russia

Amethyst

Amethyst

Usual Treatments - Heat
Hardness - 7
Major sources - Africa, South America, Russia,
Mexico, Zambia

Amatrine-2

Ametrine

Usual Treatments - None
Hardness - 7
Major Source - Bolivia

Aquamarine

Aquamarine

Usual Treatments - Heat
Hardness - 7.5 to 8
Major Sources - South America, Africa, China

Chalcedony_Blue

Chalcedony

Usual Treatments - None
Hardness - 6.5 to 7
Major Sources - Blue: Africa
Lavender: United States

Citrine

Citrine

Usual Treatments - Heat
Hardness 7
Major Sources - Brazil, Bolivia

Blue_Diamond

Diamond, Colored

Both natural and treated colors are available
Hardness - 10
Major Sources - Canada, Russia, Australia

Diamond

Diamond, White

Usual Treatments - None
Hardness - 10
Major Sources - Canada, Russia

Emerald

Emerald

Usual Treatments - Oiling, Resin Infusion
Hardness - 7.5 to 8
Major Sources - Afghanistan, Columbia, Zambia, Brazil, Zimbabwe

Mozambique_garnet

Garnet

Usual Treatments - None
Hardness - 7 to 7.5
Major Sources - Africa, Sri Lanka, India, East
Africa, Australia, Brazil, United States

Garnet,-Tsavorite

Garnet, Tsavorite

Usual Treatments - None
Hardness - 7 to 7.5
Major Sources - Sri Lanka, Kenya, Tanzania, Brazil,
India

Greenstone

Greenstone

Usual Treatments - None
Hardness - 7 to 7.5
Major Source - Michigan

Iolite

Iolite

Usual Treatments - None
Hardness - 7 to 7.5
Major Sources - India, Tanzania, Brazil, Sri Lanka,
Madagascar, Namibia, Myanmar

jadeite_jade

Jade, Jadeite

Usual Treatments - Dyed (ours is untreated)
Hardness - 7
Major Sources - Burma, China

Jade,-Nephrite-2

Jade, Nephrite

Usual Treatments - None
Hardness - 6.5
Major Sources - Taiwan, Canada, Australia, China,
New Zealand

Larimar

Larimar

Usual Treatments - None
Hardness - 4.5 to 5
Major Source - Dominican Republic

Black_Onyx

Onyx

Usual Treatments - Dyeing
Hardness - 6.5 to 7
Major Sources - Brazil, Madagascar, Uruguay,
United States

Black_Opal

Opal, Black

Usual Treatments - None
Hardness - 5 to 6.5
Major Source - Australia

Opal,-Mexican-Fire

Fire Opal

Usual Treatments - None
Hardness - 5 to 6.5
Major Source - Mexico

White_Opal

Opal, White

Usual Treatments - None
Hardness - 5 to 6.5
Major Source - Australia

Akoya_Pearl

Pearl, Akoya Cultured

Usual Treatments - Color Stabilization
Hardness - 2.5 to 4
Major Source - Japan

Freshwater_Pearl

Pearl, Freshwater

Usual Treatments - Color Stabilization
Hardness - 2.5 to 4
Major Sources - China, Japan

Perarl,-Mabe'

Pearl, Mabe`

Usual Treatments - Color Stabilization
Hardness - 2.5 to 4
Major Sources - China, Japan

Tahitian_Pearl

Pearl, Tahitian Cultured

Usual Treatments - Color Stabilization
Hardness - 2.5 to 4
Major Source - Tahiti

Peridot

Peridot

Usual Treatments - None
Hardness - 6.5 to 7
Major Sources - United States, China, Australia,
Brazil, Myanmar, Kenya, Mexico, Sri Lanka

Ruby

Ruby

Usual. Treatments - Heat
Hardness - 9
Major Sources - Thailand, Myanmar, Kampuchea, Sri Lanka, Kenya, India, Afghanistan, Pakistan, Tanzania, Madagascar

Blue_Sapphire

Sapphire, Blue

Usual Treatments - Heat
Hardness - 9
Major Sources - Australia, Thailand, Sri Lanka, India,
United States, Kenya, Tanzania, Myanmar, Kampuchea

Saphire_Blue_Star

Sapphire, Star

Usual Treatments - Heat Diffusion
Hardness - 9
Major Sources - Australia, Thailand, Sri Lanka,
United States, India, Tanzania, Kamduchea, Myanmar, Madagascar

Yellow_Sapphire

Sapphire, Yellow

Usual Treatments - Heat Diffusion
Hardness - 9
Major Sources - Australia, Thailand, Sri Lanka,
United States, India, Tanzania, Kamduchea, Myanmar, Madagascar

Quartz,-Smoky

Smoky Quartz

Usual Treatments - Heat, Impregnation
Hardness - 7
Major Sources - Brazil, Madagascar, Uruguay, Sri
Lanka, South Africa

Tanzanite

Tanzanite

Usual Treatments - Heat
Hardness - 6 to 7
Major Source - Tanzania

Thomsonite

Thomsonite

Usual Treatments - None
Hardness - 5 to 5.5
Major Source - Scotland, Arkansas, Colorado, Michigan, Minnesota, New Jersey, Oregon, Ontario, Nova Scotia, India, and Russia

Blue_Topaz

Topaz, Blue

Usual Treatments - Radiation
Hardness - 8
Major Sources - Brazil, Nigeria, Australia,
Myanmar, Mexico, Namibia, Pakistan, Sri Lanka

Topaz,-Mystic-1

Topaz,Color Fusion, Diffused

Mystic, Buick, Poppy, Ice Blue
Usual Treatments - Diffusion
Hardness - 8
Major Sources - Brazil, Nigeria, Australia, Myanmar, Mexico, Namibia, Pakistan, Sri Lanka

Imperial_Topaz

Topaz, Precious

Usual Treatments - None
Hardness - 8
Major Source - Brazil

Green_Tourmaline

Tourmaline, Green

Usual Treatments - Heat
Hardness - 7 to 7.5
Major Sources - United States, Brazil, Afghanistan, India, Kenya, Madagascar, Myanmar, Pakistan, Mozambique

Pink_Tourmaline

Tourmaline, Pink

Usual Treatments - Heat, Radiation
Hardness - 7 to 7.5
Major Sources - Brazil, India, Afghanistan, Myanmar, Kenya, Tanzania, United States, Mozambique

Turquoise

Turquoise

Usual Treatments - Plastic, paraffin, silicon
Hardness - 5 to 6
Major Sources - Iran, USA (Arizona, New Mexico), Egypt, Australia, Mexico

Blue_Zircon

Zircon, Blue

Usual Treatments - Heat
Hardness - 7.5
Major Sources - Kampuchea, Sri Lanka, Myanmar,
Australia, Thailand, China