|CHRYSOCOLLA MINERAL FACTS|
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Chrysocolla Mineral Facts:
Shades of blue to greenish blue
Hardness: 2 to 4
(harder with excess silica)
Density: 2 to 2.4
Cleavage: None known. rough and uneven concoidal fracture : brittle.
Unknown - Microcrystalline
Luster:. Earthy to Vitreous, transparent to translucent - on rare occasions it is used as a gemstone.
Optics: (Refractive Index) = Unknown
The mineral occurs inmany copper mines worldwide, especially in Bohemia, Hungary, Italy and Russia. Also in Cornwall, Saxony, Bavaria, Siberia and South Australia. t is also abundant in Chile, where it occurs in all varieties. It occurs at many locations in the United States, especially as blue crusts on the basalts near Somerville, N. J.; and as a bluish green matrix cementing black masses at the Old Dominion Copper Mine, Globe, Ariz; and most of the other copper mines of Arizona, Nevada and New Mexico. It is found intimately intergrown with opal at the Boleo Mine, California.
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Please note that the author, Chris Ralph, retains all copyrights to this entire document and it may not be reproduced, quoted or copied without permission.
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