Valentinite
Valentinite is a mineral. Its chemical formula is Sb2O3. It is a mineral form of antimony trioxide. It has a Mohs hardness of 2.5 to 3. It is colorless to white. Its specific gravity is 5.76. It is made when stibnite is oxidized.
Valentinite is a mineral. Its chemical formula is Sb2O3. It is a mineral form of antimony trioxide. It has a Mohs hardness of 2.5 to 3. It is colorless to white. Its specific gravity is 5.76. It is made when stibnite is oxidized.