Home > Laskowski Ⅱ – June 29 > MS1846 Cornwallite found 2000
Cornwallite found 2000
- Myler mine
- Majuba Hill
- Pershing County
- Nevada
- U.S.A.
- 7.4 × 5.1 × 3.2 cm – Small cabinet specimen (under 10 cm)
Cornwallite is a hydrous copper arsenate. Zippe (1847) named the species after Cornwall, England, source of the original mineral.
Cornwallite forms a discontinuous green crust on altered volcanic rock; the largest patch is 3.2 × 2.1 cm. At magnification the mineral appears pseudomorphous. Could it be a replacement of azurite? Or clinoclase? Rich for the locality. From the collection of E.R. Laskowski (1949-2020), a mining engineer who retired to Tucson, Arizona. Laskowski self-collected this specimen August 18-19, 2000.
Price: $45
Item code: MS1846
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