BORACITE
Specimen brc-1

Dims: 0.9" x 0.8" x 0.8"(2.3 x 2.0 x 2.0 cm)

Wt: 7.5 g

Cleveland, Yorkshire, England

This specimen is made up entirely of Boracite; it has a pale green-blue coloration, and occurs as tiny crystals(about 2 mm max. diameter) that are fused together in a crust. Their form is a complex variation of the tetrahedron, and they have a vitreous luster on their crystal faces, and are translucent. The specimen has been glued to a foam base that fits into a plastic specimen box. I don't get to see many minerals from England, and this particular specimen is an example of a rather unusual mineral.

Dims: 1.5 x 1.1 x 0.5" (3.8 x 2.8 x 1.3 cm)

Wt: 10.2 g

Boulby Potash Mine, Cleveland, Yorkshire, England

This small thumbnail specimen consists of a small crust made almost entirely of cubic Boracite crystals. These crystals range in diameter from 1 to 3 mm and are rather warped and heavily intergrown, so that only a few show any definite cubic form. However, they are generally in excellent condition, showing very little damage. All have a pale greenish blue color and a bright pearly luster, and are dimly transparent.

Dims: 1.7 x 1.5 x 1.0" (4.3 x 3.9 x 2.5 cm)

Wt: 1.6 oz. (46 g)

Boulby Potash Mine, Cleveland County, England

This small hand specimen consists almost entirely of massive and crystalline Boracite. The crystals are small, not exceeding 0.1" (3 mm) in diameter, but are generally in excellent condition. Though rather heavily intergrown, they show excellent orthorhombic prismatic form and look nearly octahedral in shape. All have a pale green color and a bright pearly luster and are transparent, though slightly cloudy. The base on which these crystals rest contains some other materials, but is primarily composed of more Boracite, ranging from heavily intergrown crystals to compact, granular to essentially massive habits, all of which retain the pale green coloration. The piece is hot-glued onto a flat acrylic base. Documentation states that it was once in the collection of Bill and Brigitta Wray.