Atelestite

Atelestite is an arsenate mineral with the chemical formula Bi₂(AsO₄)O(OH). Its type locality is Erzgebirgskreis, Saxony, Germany.^[1]

Atelestite
Atelestite crystals
General
Category	Minerals
Formula	Bi2(AsO4)O(OH)
IMA symbol	Ale
Identification
Color	Sulphur-yellow to yellowish-green, wax-yellow, yellow-brown
Cleavage	{001}, indistinct
Mohs scale hardness	4.5-5
Luster	Adamantine, Resinous
Specific gravity	7.14