General Information:
Chemical Formula:
(Zn,Mn)O
Composition:
(Molecular Weight = 81.39 gm)
Zinc 80.34 % Zn
Oxygen 19.66 % O
Empirical Formula:
ZnO
Environment:
Metamorphosed weathered ore deposit.
Locality:
Major zinc ore at Sterling Hill and Franklin, New Jersey.
Name Origin:
Named after its composition containing zinc (From the German, "zink")
Physical Properties:
Cleavage:
[0001] Perfect
Color:
yellow, dark yellow, dark red, or orange.
Density:
5.43 - 5.7, Average = 5.56
Diaphaniety:
Translucent to subtranslucent
Habits:
Massive - Fibrous - Distinctly fibrous fine-grained forms., Granular - Generally occurs as anhedral to subhedral crystals in matrix., Disseminated - Occurs in small, distinct particle s dispersed in matrix.
Hardness:
4-5 - Fluorite-Apatite
Luminescence:
None.
Luster:
Sub Metallic
Streak:
yellowish orange
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