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Chrysocolla
Chrysocolla

Eosphorite
Eosphorite



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Chrysocolla
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Eosphorite
1 Physical Properties
1.1 Tenacity
Brittle
Not Available
1.2 Solubility
Not Available
Not Available
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
2.00-2.453.05-3.08
Amber
1 7.18
1.5 Fracture
Sub-Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Brittle
Subconchoidal, Uneven, Conchoidal, Uneven
1.6 Cleavage
none
Poor on {100}
1.7 Mohs Hardness
2-45
Amber
2 10
1.8 Chemical Composition
Cu2H2Si2O5(OH)4
Mn2+ Al(PO 4)(OH) 2H 2OMichael O’Donoghue , Gems, Sixth Edition (2006)