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Biotite-Calc-Silicate Gneiss
Place Collected:Moose River, Near Randolph, New Hampshire
Object number: BILLINGS-MW-61
DescriptionGneiss showing foliation with the biotite grains (≤ 1 cm). Matrix is a mixture of quartz and calcite. Contains garnets (≤ 2 mm) scattered throughout. Sample is very fragile and prone to breaking.