Anhydrous normal carbonate, calcite group
Specific gravity: 4.13
Hardness: 3 to 4
Colour: Rose red, altering to grey, brown or velvet back
Solubility: Slowly soluble in cold hydrochloric acid. Rapidly soluble in hot acids with effervescence.
Common impurities: Ca,Ni,Fe,O
Spherocobaltite is a rare accessory mineral in hydrothermal cobalt-bearing mineral
deposits with oxidised zones containing
carbonates. Associated minerals include carrollite,
chrysocolla, cobaltoan calcite,
dolomite, heterogenite and
At the Kambove District, Haut-Katanga, DR Congo, spherocobaltite is associated with cobaltoan calcite and cobaltoan dolomite (HOM).
At the L'Etoile du Congo mine, Lubumbashi, Haut-Katanga, DR Congo, spherocobaltite occurs in dolostone (Dana).
At the type locality, the Daniel mine, Neustädtel, Schneeberg, Erzgebirgskreis, Saxony, Germany, spherocobaltite occurs in cobalt-nickel veins associated with roselite, erythrite and annabergite (HOM, Dana, Mindat ).
Spherocobaltite alters to heterogenite (Mindat).
Back to Minerals