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Gem Z-twin Gypsum (old) Mullane Coll.
- Lake Gilles, Corunna Station, South Australia, Australia
- Small Cabinet, 7.0 x 6.0 x 5.2 cm
- Start Time: 07/26/2013 6:30:00 pm (CDT)
- End Time: 08/01/2013 6:30:00 pm (CDT)
- Auction Closed
Item Description
Lake Gilles produces some of the most unusual gypsum crystal forms in the world or any mineral specimen crystal form, for that matter. This is a bizarre, water-clear, colorless and doubly terminated twinned gypsum crystal. The floater crystal has included clay particles. This particular shape is a Z-twin. Essentially pristine, with only the most trivial of edge wear. Amazing for such a soft mineral. Most certainly a VERY strange-looking specimen! It looks carved! See the Mineralogical Record article in the May-June, 1982 issue, Vol. 13, No. 3. Ex Mullane Collection. Older material.