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Dravite-Uvite Tourmaline in Inwood Marble from Construction excavation at 207th Street and Broadway, New York, Manhattan Island, New York

 
Dravite-Uvite Tourmaline in Inwood Marble from Construction excavation at 207th Street and Broadway, New York, Manhattan Island, New York

Dravite-Uvite Tourmaline in Inwood Marble from Construction excavation at 207th Street and Broadway, New York, Manhattan Island, New York

Photo below under shortwave ultraviolet illumination:
Dravite-Uvite Tourmaline in Inwood Marble from Construction excavation at 207th Street and Broadway, New York, Manhattan Island, New York

DESCRIPTION:No. 61944
Mineral:Dravite-Uvite Tourmaline in Inwood Marble
Locality:Construction excavation at 207th Street and Broadway, New York, Manhattan Island, New York
Description:A large partial crystal of brown tourmaline in grainy gray Inwood Marble. These tourmaline crystals range from dravite (sodium-rich) to uvite (calcium-rich), often with a single crystal so should be labeled as dravite-uvite. Collected in November 2013
Overall Size:32x12x8 mm
Crystals:9 mm segment
Status: Sold - Posted here for reference only
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