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Polished Concentric Thomsonite
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Collection |
John Betts - Fine Minerals |
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Description |
Nodule of green-to-pink Thomsonite polished to show the many concentric growth patterns. The green color is caused by Chlorite inclusions.
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Locality |
Thomsonite Beach, Grand Marais, Cook County, Minnesota |
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Dimensions |
28 x 18 x 15 mm. |
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Specimen Grade |
A |
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Photograph |
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