| 622 ts ((COLEMANTITE with CALCITE)), $20 MINIMUM BID, Boron Open Pit Mine, Kramer Borate Deposit, Boron, Kern County, California, 7 x 6 x 3.5 cm, Cabinet | |
 | Here is a specimen with dark yellow brown spear shaped crystals of Colemanite. The Calcite is harder to see as it blends in but consists of flowers of thin crystals clusters with the same color as the Colemanite. Undamaged and sets perfectly for display without the bottom being sawn. ex Milton L Speckels collection, ex Jim Minette collection whom purchased the Speckels Borate collection. |
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