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Cordierite
Cordierite
Mineral Properties and Uses
What is Cordierite?
Arsenopyrite is an iron arsenic sulfide. It is the most common arsenic mineral and the primary ore of arsenic metal. Arsenopyrite is most often found as a hydrothermal vein mineral and sometimes as a mineral of contact metamorphism. It is sometimes referred to in old texts as "mispickel".
Physical Properties of Cordierite |
| Uses |
gems, ceramics |
| Color |
various shades of blue to bluish gray |
| Streak |
colorless |
| Luster |
vitreous |
| Diaphaneity |
transparent to translucent |
| Cleavage |
Poor |
| Mohs Hardness |
7 - 7.5 |
| Specific Gravity |
2.5 - 2.8 |
| Distinguishing Characteristics |
resembles quartz |
| Crystal System |
orthorhombic |
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