Witherite

Witherite natural mineral from Apedale main vein whitterdale moor Swaledale UK Size- 6.7cm x 4.7cm x 2.7cm Weight- 142g You will receive the item in the photo Witherite is a barium carbonate mineral. Crystal system- Orthorhombic. Crystals commonly twin into pseudo-hexagonal pyramidal or dipyramdal assemblages that look superficially hexagonal. Habit- Short prismatic,globular, Botryoidal,columnar or granular masses. mineral class- Carbonate.It is an anhydrous (water-free) mineral. Rock formation- Witherite is a relatively rare barium carbonate mineral. It forms under specific geological conditions. Hydrothermal veins- it primarily forms in low-temperature hydrothermal environments where barium-rich fluids react with carbonate-bearing rocks or solutions. Sedimentary settings- it can also occur as secondary mineral in sedimentary ironstones or altered limestone beds. Hardness-3-3.5 on the MOHs scale.