Difference between revisions of "Template:Sphalerite"
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! colspan=2 | Sphalerite | ! colspan=2 | Sphalerite | ||
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− | | Chemical composition || | + | | Chemical composition || (Zn,Fe)S |
|- | |- | ||
| Crystal system || [[Crystals_&_Their_Structure#Cubic_Crystal_System | Cubic]] | | Crystal system || [[Crystals_&_Their_Structure#Cubic_Crystal_System | Cubic]] | ||
|- | |- | ||
− | | Habit || | + | | Habit || Tetrahedral or dodecahedral |
|- | |- | ||
− | | Cleavage || | + | | Cleavage || Perfect in 6 directions; easily developed |
|- | |- | ||
− | | Fracture || | + | | Fracture || Concoidal to uneven |
|- | |- | ||
− | | Hardness || 3.5 | + | | Hardness || 3.5-4.0 |
|- | |- | ||
− | | Optic nature || | + | | Optic nature || Isotropic |
|- | |- | ||
− | | | + | | Refractive index || 2.368 - 2.50 (increases with Fe content) |
|- | |- | ||
− | | | + | | Specific gravity || 3.95-4.10 |
|- | |- | ||
− | + | | Lustre || Adamantine to Subadamantine | |
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− | | Lustre || | ||
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Latest revision as of 11:22, 24 December 2006
Sphalerite | |
---|---|
Chemical composition | (Zn,Fe)S |
Crystal system | Cubic |
Habit | Tetrahedral or dodecahedral |
Cleavage | Perfect in 6 directions; easily developed |
Fracture | Concoidal to uneven |
Hardness | 3.5-4.0 |
Optic nature | Isotropic |
Refractive index | 2.368 - 2.50 (increases with Fe content) |
Specific gravity | 3.95-4.10 |
Lustre | Adamantine to Subadamantine |