Jaffeite
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Jaffeite
From Wikipedia, the free encyclopedia
| Jaffeite | |
|---|---|
| Category | Mineral |
| Chemical formula | Ca6Si2O7(OH)6 |
| Identification | |
| Color | none |
| Crystal habit | |
| Crystal system | |
| Twinning | |
| Cleavage | |
| Fracture | Choncoidal |
| Mohs Scale hardness | |
| Luster | Vitreous |
| Polish luster | |
| Refractive index | |
| Optical Properties | |
| Birefringence | |
| Pleochroism | |
| Ultraviolet fluorescence | |
| Streak | White |
| Specific gravity | |
| Diaphaneity | |
Jaffeite is an hydrated calcium silicate with the chemical formula
Ca6Si2O7(OH)6
Contents
- 1 Mineralogy
- 2 Occurrence
- 3 Gemology
- 4 Related minerals
- 5 References
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Occurrence
The mineral was first found at the Kombat Mine in Namibia. In 1989 'Jaffeite' was named for Prof. Howard W. Jaffe (d. 2002) of the University of Massachusetts at Amherst.References:
http://webmineral.com/data/Jaffeite.shtml http://www.minsocam.org/ammin/AM74/AM74_1203.pdf
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The main article for this category is Jaffeite.
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