Quartz, SiO2, 4,5 cm
"Tessiner habitus", "spitzrhomboedrischer Habitus", "steilrhomboedrischer Habitus"
Val Bedretto, Ticino (Tessin), Switzerland
Photo and coll. P. Perroud
(now in NHM Geneva).
A T H E N A |
Quartz, SiO2, 4,5 cm
"Tessiner habitus", "spitzrhomboedrischer Habitus", "steilrhomboedrischer Habitus"
Val Bedretto, Ticino (Tessin), Switzerland
Photo and coll. P. Perroud
(now in NHM Geneva).