General Information:
Chemical Formula:
Mn2Cl(OH)3
Composition:
(Molecular Weight = 196.35 gm)
Manganese 55.96 % Mn
Hydrogen 1.54 % H
Chlorine 18.06 % Cl
Oxygen 24.45 % O
Empirical Formula:
Mn2+2Cl(OH)3
Environment:
Oxidized portions of manganese deposits.
Locality:
Alum Rock Park, 7 miles NE of San Jose, Santa Clara Co. California.
Physical Properties:
Cleavage:
None
Color:
emerald green.
Density:
2.94
Diaphaniety:
Translucent to Opaque
Habits:
Crystalline - Fine - Occurs as well-formed fine sized crystals., Prismatic - Crystals Shaped like Slender Prisms (e.g. tourmaline).,
Hardness:
3.5 - Copper Penny
Luminescence:
Non-fluorescent.
Streak:
light green
More details...