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Star Blue Quartz
Nephrite Jade
Turquoise
Diamond
Benitoite (1985)
Aquamarine (1971)
Garnet (1977)
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Moonstone
Quartz (1976)
Black Coral
Star Garnet
–
–
–
–
Freshwater Pearl (1986)
Agate (1976)
Tourmaline
Patuxent River Stone (2004)
Rhodonite (1974)
Chlorastrolite (1972)
Lake Superior Agate (1969)
–
Mozarkite (1967)
Sapphire
Blue Agate (1967)
Virgin Valley Black Fire Opal
Smokey Quartz (1985)
–
Turquoise (1967)
Garnet (1967)
Emerald (1973)
–
Ohio Flint (1965)
–
Oregon Sunstone (1987)
–
–
Amethyst (1969)
Fairburn Agate (1966)
Tennesse River Pearl (1979)
Texas Blue Topaz (1969)
Topaz (1969)
Grossular Garnet
–
Petrified Wood (1975)
Silicified Fossil Coral (1990)
–
Nephrite Jade (1967)
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Hematite
Gold
Fire Agate
Quartz
Gold
Rhodochrosite (2002)
Garnet
Sillimanite
–
Staurolite
–
–
Fluorite (1965)
Salem Limestone (1971)
Geode (1967)
–
Coal
–
–
–
Babingtonite (1971)
Petoski Stone (1965)
–
Petrified Wood (1976)
Galena (1967)
Agate
Prairie Agate (1967)
Silver
mineral: Beryl (1985)
rock: granite (1985)
–
–
–
mineral: Gold (2011)
rock: granite (1979)
Teredo Wood
–
Rose Rock (Barite)
Thunderegg Agate (1965)
–
mineral: Bowenite (1966)
rock: Cumberlandite (1966)
Blue Granite (1969)
Rose Quartz
Limestone (1979)
mineral: Silver (2007)
rock: Petrified Palmwood (1969)
mineral: Copper (1994)
rock: Coal (1991)
mineral: Talc
rock: granite, marble, slate (1992)
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–
Coal (2009)
mineral: Galena (1971)
rock: red granite (1971)
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