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|
Properties
|
Origin: |
From the Greek dis
- of two kinds and opsis - opinion |
|
Hardness
(Mohs Scale): |
6-7 |
|
Crystal
System (number of classes) |
Monoclinic |
|
Color: |
Green, green-black
or grey |
|
Transparency: |
Transparent to
translucent |
|
Luster: |
Vitreous, greasy |
|
Streak: |
White |
|
Occurrence: |
Widespread |
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