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350. Actinolite. Crystaline

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Dana number

66.1.3a.2

Chemical formula

Ca₂(Mg,Fe²⁺)₅[Si₈O₂₂](OH)₂

Crystal class

Monoclinic

Mohs hardness

5 to 6

Specific gravity

2.89-3.44

Collected in

Greymouth , New Zealand

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