Quartz, Calcite

Specimen ID: 3F5-G16

Quartz : SiO2
Calcite : CaCO3
As recorded:
McDowell's Quarry, Upper Montclair, Montclair Township, Essex Co., New Jersey, USA
Mindat locality:

Photo added to mindat.org

Quartz var. amethyst with calcite. 6 cm.
Bradley Plotkin - 12th December 2011
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