Brian Kosnar Mineral Classics

microcline (var: amazonite) on albite (var: cleavelandite)

microcline

microcline (var: amazonite)

microcline (var: amazonite)

microcline (var: amazonite)

microcline (var: amazonite)

microcline (var: amazonite)

microcline (var: amazonite)

microcline (var: amazonite)

microcline (var: amazonite)

microcline (var: amazonite)

microcline (var: amazonite)

copper (leaf-like specimen)

copper (leaf-like specimen)

copper (leaf-like specimen)

copper (leaf-like specimen)

copper

phosphophyllite with siderite & sphalerite

phosphophyllite

hopeite (!!) with phosphophyllite (first known specimens from south america!)