Witherite
Witherite is a carbonate mineral recognized among collectors for its crystal form and distribution, with known Chinese sources.
About Witherite
Witherite belongs to the carbonate class in the aragonite group and has the chemical formula BaCO3. It crystallizes in the orthorhombic system and is relatively soft, requiring careful handling.
Identification & care
Specimens usually show pseudo-hexagonal dipyramids (twinned), massive, granular. Its color range is broad, including colorless, white, pale gray, and pale yellow. The luster is vitreous to resinous, the streak is white, and specimens range from transparent to translucent. The cleavage is distinct {010}. The fracture is uneven, which aids identification.
Collector context
Collector notes
For collectors, Witherite is a benchmark crystalline species. Witherite is widely represented across Chinese provinces, including Sichuan, Hubei, Liaoning, Shaanxi.