| 15dm176 ((QUARTZ, SPHALERITE, PYRITE)), $10 MINIMUM BID, Black Rock Mine, Leadville, Colorado, 4.5 x 4 x 3 cm, Miniature | |
 | Here is a miniature from Leadville, Colorado. It is a combination of terminated Quartz over Sphalerite and Pyrite. Dennis McMurdie collection. |
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