| 7ghjdr ((STRINGHAMITE)), $10 MINIMUM BID, Christmas Mine, Gila county, Arizona, 2 x 2 x .5 cm, Thumbnail | |
 | This blue mineral is a calcium copper silicate. Named for the chair of the Geology Dept at the U of Utah. self collected by Schmerling with Ray Grant. ex D W Schmerling collection. |
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