Blue baryte blades on calcite & pyrite — 941 g

Description

This specimen presents delicate blue baryte blades resting on a matrix of calcite and pyrite. The baryte blades form a soft, light-blue grouping that contrasts with the pale calcite and brassy pyrite beneath. The piece measures H 14 cm × W 12 cm × D 6 cm and weighs 941 g.

Mineral context

Calcite is calcium carbonate (CaCO3). It forms in many sedimentary, metamorphic and hydrothermal settings and occurs in a wide range of crystal habits and aggregate forms.