Stibnite‑Calcite‑Selenite Epigenetic‑Growth Specimen B mineral and massive white dolomite veins

and massive white dolomite veins with minor quartz filling fractures

Tansifte Caïdat

with distinct hierarchical crystal sizes including sharp acicular microcrystals and massive individual calcite monomers

though it's also an industrial mineral

The two minerals are interpreted as near-synchronous hydrothermal precipitates

Stibnite‑Calcite‑Selenite Epigenetic‑Growth Specimen B mineral and massive white dolomite veinsStibniteCalciteSelenite EpigeneticGrowth Specimen from Weishan YiHui Autonomous County, Dali, Yunnan Province, China Primary stibnite crystals crystallized first within the hydrothermal vein. Orangetoned scalenohedral calcite later precipitated and encrusted the stibnite matrix. Finegrained fibrous selenite fully covered the calcite layer afterward. Exposed calcite crystals are manually chiselled out from the outer selenite layer. This threestage