511-09ldgces ((CALCITE)), $10 MINIMUM BID, Irai, Rio Grande do Sul, Brazil, 11 x 9 x 2.5 cm, Cabinet | |
Here is a large plate of scalenohedral crystals of Calcite which are suprizingly not very fluorescent under SW UV. Undamaged other than edge crystals except for one crystal with a cleaved termination. ex H. Deisinger collection |