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Ettringite on Calcite
- Nchwaning II Mine, Kalahari mangenese fields, Northern Cape Province, South Africa
- Toenail, 3.2 x 2.7 x 2.2 cm
- Start Time: 07/28/2009 6:30:00 pm (CDT)
- End Time: 08/18/2009 7:21:37 pm (CDT)
- Auction Closed
Item Description
Superb toenail composed of a lemon-yellow 1.3 cm Ettringite crystal, along with gemmy micro-Ettringites, on doubly-terminated calcite with Andradite. There are also needles of a dark mineral (hematite?) along the bottom side. The major Ettringite crystal has a well-formed hexagonal habit and excellent luster. An excellent, and very aesthetic, combination thumbnail