K Feldspar specimens
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AMPHIBOLE GROUP var. BYSSOLITE, K FELDSPAR var. ADULARIA
Giuv Valley, Tujetsch, Surselva Region, Grisons, Switzerland
$85
42mm x 30mm x 16mm
From: Quebul Fine Minerals
Hematite ( var. Iron Roses ) on K-Feldspar ( var. Adularia )
Cavradi, Val Curnera, Tavetsch, Graubunden (Grisons) Canton, Switzerland
$2300
107mm x 104mm x 50mm
From: Bob Griffis Minerals