10 Dec 2012
13:00 PST
Los Angeles
Natural History-Unmounted Gemstones, Jewelry, Pearls
Back to auction 20082
Natural History-Unmounted Gemstones, Jewelry, Pearls
Back to auction 20082
Rare Cerrusite—A Member of the 100 Carats Club
Tsumeb, Namibia
A rare stone for the collector due to its large size, unusual smoky color, and excellent luster. The present gem example of cerrussite is a desireable one. Cerussite is a white lead ore with a hardness of 3.5 available in various colors—this darker brown hue is rarer than the colorless versions often seen. It has a very high luster due, primarily, to its lead content—just as leaded crystal glass sparkles more brilliantly because of its lead content, so too does cerussite. Expertly faceted as a modified Barion-cut, the dispersive properties of this rare mineral are apparent in this beautiful stone.
Weighing approixmately 257.65 carats and measuring 28.0 x 29.0 x 19.0mm
A rare stone for the collector due to its large size, unusual smoky color, and excellent luster. The present gem example of cerrussite is a desireable one. Cerussite is a white lead ore with a hardness of 3.5 available in various colors—this darker brown hue is rarer than the colorless versions often seen. It has a very high luster due, primarily, to its lead content—just as leaded crystal glass sparkles more brilliantly because of its lead content, so too does cerussite. Expertly faceted as a modified Barion-cut, the dispersive properties of this rare mineral are apparent in this beautiful stone.
Weighing approixmately 257.65 carats and measuring 28.0 x 29.0 x 19.0mm
Estimate:
US$ 1,800 - 2,500
£1,100 - 1,600
€1,300 - 1,900
£1,100 - 1,600
€1,300 - 1,900
Category: Natural History
Auction terms and conditions
Contacts
Claudia Florian
Bonhams
Work
7601 W. Sunset Boulevard
Los Angeles,
90046
United States
WorkTel:
+1 323 436 5437
FaxFax: +1 323 850 5843
Auction Administration
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Natural History