Formula: (Ni,Cu)Al4(NO3,SO4)2(OH)12 . 3H2O
Origin of name: From locality; Mbobo Mkulu cave, South Africa
Crystal system: Monoclinic
Crystal class: Unknown
Twinning:
Unit cell:
Colour: Sky-blue
Diaphaneity:
Luster:
Habit: Powdery, pseudohexagonal plates to 10µm
Hardness: 1
Specific gravity: 2.30
Cleavage: 1; {001} perfect
Tenacity:
Streak:
Synonyms/varieties:
Comments: Series with hydrombobomkulite
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