Borax
Borax is a borate mineral recognized among collectors for its crystal form and distribution, with known Chinese sources.
About Borax
Borax belongs to the borate class in the borax group and has the chemical formula Na2(B4O5)(OH)4·8H2O. It crystallizes in the monoclinic system and is relatively soft, requiring careful handling.
Identification & care
Crystals commonly develop as prismatic, tabular, massive; dehydrates to white powdery tincalconite on surface. Its color range is broad, including colorless, white, pale gray, and pale blue-green. The luster is vitreous to resinous, the streak is white, and specimens range from transparent to translucent. The cleavage is perfect {100}. The fracture is conchoidal, which aids identification.
Collector context
Collector notes
Among collectors of crystallized species, Borax is a recognized reference. Borax is widely represented across Chinese provinces, including Tibet, Inner Mongolia, Qinghai.