Wilkeite Value, Price, and Jewelry Information
An overview on Wilkeite Jewelry and Gemstones. Covers details and essential information on the physical properties and characteristics of Wilkeite gems.
The International Gem Society (IGS) has a list of businesses offering gemstone appraisal services.
|Is a Variety of||Apatite|
|Crystallography||Hexagonal. Crystals rounded; granular; massive.|
|Colors||Pale pinkish, yellowish, rose red.|
|Luster||Vitreous to resinous.|
|Stone Sizes||Cuttable crystal fragments have been encountered, but I know of no faceted gems.|
|Absorption Spectrum||Not diagnostic.|
|Optics||o = 1.640-1.650; e = 1.636-1.646. Uniaxial (-).|
Occurrence: In metamorphosed marbles.
Kyshtym, Urals, USSR; Laacher See, Germany.
Crestmore, California in marble.
Comments: Wilkeite is a rare silicate—sulfate apatite that has not been encountered as faceted gems; however. I have seen cuttable crystals that would yield stones in the 1-5 carat range. These would be extremely rare stones.
Name: After R. M. Wilke, mineral collector and dealer in Palo Alto, California.