#12091 Feldspar Catseye 121.89 cts
Rare Collectors Gem
  Quantity : 1
  Carats : 121.89
  Size : mm 43.6x23.9
  Color : Medium Grey
  Clarity : Translucent, Included
See Clarity Scale
  Shape : Oval, Cabochon
  Treatment : None
  Origin Sri Lanka
  Location :
Colombo, Sri Lanka

SELLING PRICE US $ 420.00

 

Collectors Gem!
Suitable for Museums, Institutions and Students of Gemology

Large Sizes are Rare!

Beautiful sharp Catseye effect

Among the Rarest of gemstones

Rare chance to own a Fine Feldspar Catsee

Natural gem Free of any Treatment - 100% Natural

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R.I. : 1.528 - 1.537 Hardness : 6
Chemical Comp : 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. Feldspar minerals are aluminum silicates of either potassium, sodium, and calcium. Most crystallize in the monoclinic nd triclinic systems. Cleavage is good in 2 directions forming nearly right angled prisms.