Ettringite

Big Photo

South Africa
0.51 carats
© Mineral Classics

Ettringite is named after its discovery locality, at Ettringen, Eifel mts., Rheinland-Palatine, Germany.

Ettringite forms colourless to pale yellow transparent to opaque crystals, which can be faceted.
2 photos

Ettringite Gemstones by Colour

This table shows the variety of hues this gemstone can be found in. Click on a photo for more information.
 
 

Ettringite Gemstones by Size

This table shows distribution of Ettringite gemstone sizes that are listed on this site. This can give a good indication as to the general availability of this gemstone in different sizes.
Contributed photos
Lightest:.42 cts
Heaviest:0.51 cts
Average:0.46 cts
Total photos:2
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0.42ct to 0.43ct0.43ct to 0.44ct0.44ct to 0.45ct0.45ct to 0.46ct0.46ct to 0.47ct0.47ct to 0.47ct0.47ct to 0.48ct0.48ct to 0.49ct0.49ct to 0.50ct0.50ct to 0.51ct
General Information
Chemical Formula
Ca
 
6
Al
 
2
(SO
 
4
)
 
3
(OH)
 
12
 26H
 
2
O
Michael O’Donoghue, Gems, Sixth Edition (2006)
Mohs Hardness
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