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Compact Hornblende Mass
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Collection |
John Betts - Fine Minerals |
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Description |
Compact mass of intergrown black Hornblende crystals with black Biotite mica crystals and scattered Magnetite (as evidenced by magnetometer). From the old iron mines of northern New Jersey in the Reading Prong formation. Collected Sept. 3, 1994. |
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Locality |
Blue Mine, Ringwood Mining District, Passaic County, New Jersey |
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Dimensions |
8 x 7 x 5 cm. |
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Specimen Grade |
A |
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Photograph |
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