Description
Species: Ishikawaite, Columbite
Locality: Penfield Quarry, Middletown, Connecticut, USA
Dimensions: 5.7 x 4.7 x 3.7 cm.
Ex. Eric Quinter Collection (U/Th 0621)
Nice specimen of black elongated Ishikawaite crystals with Columbite in pegmatite matrix from the Penfield Quarry, Middletown, Connecticut, USA. Rare locality for this uncommon REE mineral!












