[Rockhounds] Cactus Calcite

[Lawrence Rush]

List: I have acquired some 2 dozen unusual Calcites from an old collection. 
These are labeled;

Cactus Calcite
Verington District
Lyon county
Nevada

Both the specimen habit, and the locality are new to me, and I wondered if 
anyone has any information they can add. The pieces are very sharply 
terminated crystals, finely grouped in masses up to 6X10 cm, cactus-like, 
and are very delicate and pin-point sharp. There is very little matrix, 
which appears to be massive tan to cream colored Calcite. The owner told me 
these were collected over 40 years ago.

I'll post some pictures when I get time, but I would like to know more about 
the locality and the geologic environment, if possible. (there is little on 
the web, but some about the habit on web databases).


Thanks.....Larry