Callaghanite, Houghton Co., MI - Item MSCLL009

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$40.00
$40.00
Unavailable
per item
Impressive Callaghanite piece from Houghton Co, MI. Recently we had acquired some pieces that we believe to be from the Champion #4 Mine in Painesdale, MI. The specimens displayed an odd blue coating on firebrick. It was not until recently through a combination of SEM-EDS analysis, EMP-WDS analysis, and Raman Spectroscopy that these blue coatings were conclusively identified as Callaghanite; a rare copper-magnesium mineral that is a new species in Michigan.
Approximate size: 55x46x34 mm
Weight: 71.5 g
1 available