Fluorite, Weardale, England, Cabinet-Sized SpecimenApprox. Dimensions: 4. 2 in x 2. 6 in x 1 in Approx. Weight: 331 grams

One cube of Fluorite with a small penetration twin makes up this specimen

Weight: 404 grams

Weight: 776 grams

Veins of light gray run subtly through the center of this rectangular piece from the Burtree Pasture Mine in Cowshill

Prismatic crystals of Quartz Amethyst with such a light color that it can only be seen when held at an angle

stands out against the muted colors of the other minerals

Multiple well-formed crystals rise from a center base

Chalcopyrite is sprinkled lightly on the Quartz crust

with other crystals also exhibiting twinning

Completely opaque crystals in nearly perfect cubic formation further contribute to the pristine beauty of piece

Sphalerite is scattered throughout the specimen with tiny collections of pyrite speckled randomly on the surface

The crystals are colorless with a vitreous luster