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 Silicates:
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See also:
Miscellaneous
Dinosaur Material
Mineraloids
Rocks

Hyalite

Hyalite (variety of Opal) on Quartz & Mica, Spruce Pine, North Carolina
Sample 2817




Opal

Boulder Opal, 3 pieces, Australia
Sample 70 (DISPLAY CASE)



Opal
Sample 1994




Tektite

Tektite, Siam
Sample 2884