Catapleiite Value, Price, and Jewelry Information
The only reported cut catapleiite is from Mte. Ste. Hilaire, Quebec, Canada, in the form of tiny colorless gems.
The International Gem Society (IGS) has a list of businesses offering gemstone appraisal services.
|Crystallography||Hexagonal; crystals thin hexagonal plates. Also lamellar masses; twinned. Gaidonnayite is orthorhombic.|
|Colors||Light yellow, yellowish brown, brown, salmon-pink, yellowish red. Rarely pale blue or colorless.|
|Luster||Vitreous, greasy, or dull.|
|Fracture||Irregular to uneven, also parting|
|Hardness||5 - 6|
|Cleavage||Perfect 1 direction, imperfect 2 directions|
|Stone Sizes||Gems under 1 carat have been cut from Canadian material.|
|Absorption Spectrum||Not diagnostic.|
|Formula||Na2ZrSi3O9· 2H2O; Dimorphous with Gaidonnayite|
|Pleochroism||None in colorless gems.|
|Optics||o = 1.596; e = 1.624. Uniaxial or biaxial (+).|
OPTICS: o = 1.596; e = 1.624
OCCURRENCE: Alkalic rocks and pegmatites.
Langesundfford District, Norway; Magnet Cove, Arkansas.
Greenland; USSR; Madagascar.
Mt. Ste. Hilaire, Quebec, Canada: cuttable crystals.
COMMENTS: The only reported cut catapleiite is from Mte. Ste. Hilaire, Quebec, Canada, in the form of tiny colorless gems.
NAME: From Greek words meaning rare minerals because catapleiite is usually associated with other rare minerals.