by sysadmin | Jul 11, 2016 | Uncategorized
Shattuckite and Plancheite after Scalenohedral Calcite.-close up Tantara Mine, Shinkolobwe, Democratic Republic of the Congo, Africa. Ex. A & U Bahmann collection. This plate is covered with scalenohedral calcite crystals measuring 3cm. Each Calcite point displays...
by sysadmin | Jan 1, 2016 | Uncategorized
Post-mining Azurite Cast after Mining Timber- Bisbee, Warren District, Mule Mts, Cochise Co., Arizona. 5.5 cm across. This specimen consists of successive layers of post-mining azurite that coated an old mining timber, forming a thick, dense “cast” around...