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Search Result > Total (41) Items Found. Sort By :  Price  |  Price Per Carat  |  Weight  |  Shape 

The feldspars are a large group of aluminum-containing, monoclinic or triclinic silicates that comprise the majority of the earth’s crust. They are classified by way of the relative quantities of potassium, calcium and/or sodium that are present within their respective compositions, with the primary divide occurring between the calcium-containing plagioclase feldspars (i.e. anorthite, bytownite, labradorite, andesine and oligoclase) and the potassium-containing alkali or k-feldspars (orthoclase, sanidine and anorthoclase). However, albite - which is the sodium-dominant member of the group - also possesses small amounts of both calcium and potassium, and therefore straddles both classifications.        

The most significant feldspars within the jewelry trade are labradorite, andesine, oligoclase, albite and orthoclase, with the latter two combining to form the well-known gem variety, moonstone. In addition, the presence of tiny, plate-like inclusions of copper, goethite or hematite within oligoclase or, more rarely, orthoclase gives rise to the spangled effect of sunstone.          

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MYC0339
Clear Cushion Cut Moonstone
$ 200.00
1 pcs 10.45cts

 
JDA0517
Feldspar Cabochon
$ 58.00
1 pcs 14.02cts


 
SGA0296
Feldspar Cabochon
$ 7.00
1 pcs 7.62cts

 
JDA0583
Cat' Eye Feldspar
$ 58.00
1 pcs 5.43cts

 
GAP0467
Orthoclase Crystal
$ 5.00
1 pcs 11.10cts

 
MCG0095
Feldspar
$ 20.00
1 pcs 18.10cts


 
MCG0263
Feldspar
$ 15.00
1 pcs 38.88cts


 
SGA1135
Snow White Feldspar Cab
$ 25.00
1 pcs 12.01cts

 
GWB2836
White Feldspar Specimen
$ 35.00
1 pcs 280.00g






 
FCC0919
Moonscape Feldspar
$ 100.00
1 pcs 222.56cts


 
MCG0347
Moonstone crystal
$ 8.00
1 pcs 4.80cts

 
MYC0579
Moonstone Cabochon
$ 100.00
1 pcs 4.29cts

 
JDA0516
Feldspar Cabochon
$ 5.00
1 pcs 11.79cts

 
JDA0521
Cat's Eye Feldspar
$ 8.00
1 pcs 11.98cts

 
AZG0079
Feldspar Inclusion Cabochon
$ 100.00
1 pcs 25.48cts

 
GWB2266
Cabochon Feldspar
$ 50.00
1 pcs 524.34cts

 
MYC0356
Feldspar Crystal
$ 25.00
1 pcs 13.20cts


 
GWB3291
Feldspar
1 pcs 5.88cts

 
GWB3293
Feldspar
1 pcs 6.63cts


 
GAP0488
Feldspar Crystal
$ 15.00
1 pcs 1.45cts


 
FCC0834
Feldspar Crystal
$ 20.00
1 pcs 146.24g

 
SGA1050
Microcline - Feldspar Cab
$ 50.00
1 pcs 13.49cts

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