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Ferro-Actinolite


Ferro-Actinolite : ☐[Ca2][(Fe2+,Mg)5][(OH)2|Si8O22]

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Two prismatic crystals with a very good definition of forms, in which the terminal faces have a good development, a very unusual feature. At the same time the crystals are aerial, standing out on the matrix.
Astor, Shigar Valley Pakistan
Found in 2000
Specimen size: 4.5 x 3.3 x 4.2 cm
Main crystal size: 3.8 x 2 cm

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