Crystal drawings of calcite.
Calcite is very common locally.
Field of view is 0.7 mm in maximum dimension. Equant crystal of calcite on willemite from Franklin. Field of view is 0.5 mm in maximum dimension. The color of common orebody calcite is generally white to grayish-white. However, the color can vary substantially and is sometimes enhanced or affected by inclusions of other minerals, transmission of color from underlying colored minerals, and thin films and druses of other minerals or substances.