Calcite with Adularia
specimen number:
4751077
location:
Keweenaw Peninsula, Michigan, USA
description:
Colorless translucent crystals of calcite, one of them double terminated and measuring to 1.4 cm in size, across the top of this matrix that is covered by microscopic adularia crystals. This is in terrific condition. Previous label from the a. E. Seaman Mineral Museum in Michigan.
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