Variscite Value, Price, and Jewelry Information
Variscite has occasionally been used as a turquoise imitation. It is very popular among hobbyists as a cabochon material because of the interesting patterns in the Utah material. Variscite mixed with quartz from Ely, Nevada, has been named Amatrix (for American matrix).
The International Gem Society (IGS) has a list of businesses offering gemstone appraisal services.
|Crystallography||Orthorhombic. Crystals octahedral and very rare; also massive, crusts. nodules.|
|Colors||Colorless, pale green, dark green, yellowish green, blue-green.|
|Luster||Crystals vitreous; massive waxy to dull.|
|Fracture||Crystals: conchoidal; brittle. Massive: splintery to uneven.|
|Specific Gravity||2.2 - 2.57.|
|Cleavage||Crystals: good 1 direction. Massive: none.|
|Stone Sizes||Nodules of variscite may weigh many pounds and have been found up to a diameter of about 24 inches. The material is suitable only for cabochons, but variscite mixed with other phosphates is sometimes cut into spheres or used in decorative displays.|
|Luminescence||Dull green (Lewiston, Utah) or green (Fairfield. Utah) in SW; whitish green in LW from these localities.|
|Spectral||Not diagnostic. Strong line at 6880, weaker line at 6500.|
|Formula||AIPO4 · 2H2O.|
VARISCITE Series to Strengite: FePO4 – 2H2O.
Massive: none; fracture splintery to uneven.
Optics: a=1.563; β=1.588; γ= 1.594.
Shadow edge at about 1.56.
Biaxial (-), 2V moderate.
Occurrence: Forms by the action of phosphate-bearing waters on aluminous rocks.
Arkansas; California; Nevada; Arizona; Pennsylvania; Germany; Czechoslovakia: Austria; Queensland. Australia; Brazil; Spain.
Fairfield County, Utah: rich-colored nodules up to 24 inches across mixed with other massive complex phosphates.
Tooele, Utah: massive. rich green nodules, suitable for cutting.
Comments: Variscite has occasionally been used as a turquoise imitation. It is very popular among hobbyists as a cabochon material because of the interesting patterns in the Utah material. Variscite mixed with quartz from Ely, Nevada, has been named Amatrix (for American matrix).
Name: After Variscia, the old name of the Voigtland district in Germany where it was first found.