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Pyromorphite var. Polysphaerit (uncommon)
- Bunker Hill Mine, Kellogg, Shoshone Co., Idaho
- Small Cabinet, 9.0 x 4.5 x 2.8 cm
- Start Time: 04/12/2012 6:30:00 pm (CDT)
- End Time: 04/19/2012 6:30:00 pm (CDT)
- Auction Closed
Item Description
Polysphaerit is the VERY RARE, uncommon calcium-rich variety of pyromorphite. One pocket in the famous Bunker Hill Mine in the mid-1990s produced a few specimens, such as this, which were validated at the time and have a distinct look to them. Juicy, wet-look, straw-yellow polysphaerit botryoids and a cluster of orangier arsenian-pyromorphite botryoids on one edge very richly cover the matrix on this rare and excellent, display-quality specimen. The calcium-rich botryoids reach 3 mm. While the coloration is perhaps not as showy as more traditional pyromorphite crystal forms from this renowned locale, this remains a very uncommon and highly desirable varietal of pyromorphite. This is only the 4th really good example we have seen for sale and this one has several excellent display views. This was once a full species, apparently, circa 1832 (Breithaupt). Valued $1250-1500.