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Willemite-calcite-franklinite 4.32 ct.

#4954

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55,00 €

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Willemite-caclite-franklinite  4.32 ct.

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Willemite-Calcite + Franklinite

Is an important zinc ore ,mainly found at Franklin, New Jersey. A zinc oxide with formula: Zn2SiO4 and hardness of 5.5. In this case is associated with calcite ( red) and Franklinite ( black)

Is highly fluorescent in green at short wave U.V. light

A real must for a collector who want something special.

Size:12.3x9x6.2 mm.

Weight: 4.32 ct.

CODE#3954

OriginNew Jersey

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