Black Opal and Pyrite Marcasite Physical Properties

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Black Opal

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Pyrite Marcasite

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Black Opal

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Pyrite Marcasite

Black Opal

Black Opal

Pyrite Marcasite

Pyrite Marcasite

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Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

-

-

-

1.97-2.22

Conchoidal

None

6-6.5

SiO 2 + H 2OUlrich Henn and Claudio C.

-

-

-

4.9-5.2

-

None

6-6.5

FeS2

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