Microcline

Big Photo

Amazonite
Brazil
2.93 carats
© gemselect.com

Microcline (Greek - small slope) has the same chemical composition as orthoclase but is classified in the triclinic crystal system.

The blue-green feldspar amazonite is the only gem variety of microcline.
28 photos

Microcline Gemstones by Colour

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

Microcline Gemstones by Size

This table shows distribution of Microcline 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:0.31 cts
Heaviest:33.86 cts
Average:10.59 cts
Total photos:28
Do you have a larger Microcline? Why not upload a photo?
0.31ct to 3.67ct3.67ct to 7.02ct7.02ct to 10.38ct10.38ct to 13.73ct13.73ct to 17.09ct17.09ct to 20.44ct20.44ct to 23.80ct23.80ct to 27.15ct27.15ct to 30.51ct30.51ct to 33.86ct
General Information
A variety or type of:Feldspar
Varieties/Types:
Amazonite - A green to blue-green variety of Microcline.
Chemical Formula
KAlSi
 
3
O
 
8
Arthur Thomas, Gemstones (2009)
Mohs Hardness
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