Clino-Zoisite Clinozoisite is a complex calcium aluminium sorosilicate mineral with formula: Ca₂Al₃O. It forms a continuous solid solution series with epidote by substitution of iron(III) in the aluminium and is also called aluminium epidote. Clino-Zoisite is found in...
Chalcocite Chalcocite is associated with other copper bearing minerals such as malachite, azurite, bornite and chalcopyrite. Chalcocite is typically steel-gray in colour. The mineral is found in South Africa, Namibia, Zimbabwe and Botswana. Chemical Formular : Cu2S...
Azurite Azurite can be found in many forms and is often associated with Malachite. As it’s indicates, the colour is light to deep azure blue. Chemical Formular : Cu3(CO3)2(OH)2 Refractive Index : 1.730-1.838 Hardness : 3.5-4 on the Mohs Scale Crystal System :...
Epidote Epidote can be tea coloured to yellowish green, green and brown. It occurs in many forms, mostly in metamorphosed calcium rich rocks but also known in pegmatites. Chemical Formular : {Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH) Refractive Index : 1.73 – 1.76...