Actinolite, K Feldspar (Var: Adularia)

Specimen ID: LQX-4KQ

Actinolite : ☐{Ca2}{Mg4.5-2.5Fe0.5-2.5}(Si8O22)(OH)2
K Feldspar (Var: Adularia) : KAlSi3O8
As recorded:
Gneiss quarries, Arvigo, Calanca, Calanca Valley, Moesa, Mesolcina Valley, Grisons, Switzerland
Mindat locality:
Collected by:

Photo added to

The same pocket contained different kinds of actinolte. However, the grown-in types are mostly thicker than the loose needels on the picture. F.o.w. 20mm
Simon Cavanak - 14th May 2013
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