General Information:
Chemical Formula:
(Mn,Zn)7(CO3)2(OH)10
Composition:
(Molecular Weight = 692.95 gm)
Manganese 41.62 % Mn
Zinc 16.51 % Zn
Hydrogen 1.45 % H
Carbon 3.47 % C
Oxygen 36.94 % O
Empirical Formula:
7(Mn2+0.75)7(Zn0.25)(CO3)2(OH)10
Environment:
Secondary mineral in zinc and manganese deposits.
Locality:
Franklin, Sussex Co., New Jersey, USA.
Physical Properties:
Cleavage:
None
Color:
bluish white, brownish, or brownish white.
Density:
3.27
Diaphaniety:
Transparent to translucent
Hardness:
3 - Calcite
Luminescence:
Non-fluorescent.
Luster:
Vitreous (Glassy)
Streak:
white
More details...