the appearance varies from piece to piece: some are more fully exposed from the surrounding matrix
Calcite is a calcium carbonate mineral (CaCO₃) found in a range of colors depending on trace elements present during its formation
often glowing a bright to dull red under ultraviolet light due to chromium content within the crystal lattice
they create a specimen with strong visual contrast
offering a piece of Pakistan’s mineral diversity in a wearable
Black Barite - Specimen 3 inch the appearance varies from pieceMined from: Mibladen mining district, Midelt Province, Dra Tafilalet Region, Morocco Description: This one of a kind black barite mineral specimen from Morocco features a dense cluster of dark smoky grey to nearly black barite crystals with a bold, architectural form. The crystals show sharp tabular to bladed habits, with broad flat faces, stepped edges, and angular terminations that create strong visual depth. Some crystals are nearly opaque black,