General Information:
Chemical Formula:(Ni,Cu)Al4[(SO4),(NO3)2](OH)12·3(H2O)
Environment:Crusts on gypsum crystals.
Locality:Mbobo Mkulu cave, eastern Transvaal, South Africa.
Name Origin:Named in allusion to its composition.
Physical Properties: Cleavage:[???] Perfect
Color:sky blue.
Density:2.24
Habits:Encrustations - Forms crust-like aggregates on matrix., Nodular - Tuberose forms having irregular protuberances over the surface.,
Hardness:2.5 - Finger Nail
Streak:bluish white
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