POTTASIUM FELDSPAR 3.74 CTS 14854 - RARE COLLECTORS GEM

POTTASIUM FELDSPAR 3.74 CTS 14854 - RARE COLLECTORS GEM

  • $90.00

Carats 3.74
Size 11.8 x 9.4 mm
Color Pale Green
Clarity VC
Shape Oval
Treatment None
Origin Sri Lanka
Location Colombo,Sri Lanka
Price $ 90.00
100% Natural - Not treated in any way.
Rare Collectors Gem.
Suitable for Museums,Institutions and Students of Gemology.
Gem with High Luster and Good Clarity.

Refractive Index: 1.528 - 1.537
Hardness: 6
Chemical Composition: Na [AlSi3O8]
Density: 2.6 - 2.65
Crystal Group: Triclinic

Feldspar comes in white, yellow, or shades of red, orange to brown.Feldspar is a group of minerals related to each other in structure and chemical composition. Most crystallize in the monoclinic and triclinic systems. Cleavage is good in 2 directions forming nearly right angled prisms.

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