Difference between revisions of "Template:Rhodochrosite"

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| Refractive Index || 1.60 - 1.83
 
| Refractive Index || 1.60 - 1.83
 
|-  
 
|-  
| Birefringence || 0.208 - 0.220 Uniaxial negative
+
| Birefringence || 0.208 - 0.220 Uniaxial -
 
|-
 
|-
 
| Lustre || Vitreous to pearly
 
| Lustre || Vitreous to pearly
 
|}
 
|}

Revision as of 01:12, 22 December 2007

Rhodocrosite
Chemical composition MnCO3 + Fe, Ca
Crystal system Hexagonal
Habit Rhombohedral
Colors pink, red, yellowish, gray, brown
Hardness 3.5 - 4
Specific gravity 3.40 - 3.70
Refractive Index 1.60 - 1.83
Birefringence 0.208 - 0.220 Uniaxial -
Lustre Vitreous to pearly