AllMinerals/JohnBetts-FineMinerals > Online Mineral Museum Photographic Archive > Minerals from New Jersey > Magnetite, Biotite, Hornblende

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Online Mineral Museum Archive of Mineral Photographs and Mineral Descriptions from John Betts - Fine Minerals.com and Allminerals.com

   

Magnetite, Biotite, Hornblende from Blue Mine, Ringwood Mining District, Passaic County, New Jersey

 
Magnetite, Biotite, Hornblende from Blue Mine, Ringwood Mining District, Passaic County, New Jersey

DESCRIPTION:No. 31396
Mineral:Magnetite, Biotite, Hornblende
Locality:Blue Mine, Ringwood Mining District, Passaic County, New Jersey
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
Overall Size:8x7x5 cm
Crystals:3-8 mm
Archived: For reference only

 

 

 

 

 

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