Williamsite

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Physical & Optical Properties

Mohs Hardness 4,0
Specific Gravity 2,51 – 2,63
Refractive Index 1,53 – 1,575
Crystal System Monoclinic
Luster Waxy,Silky,Resinous,Greasy,Dull (Earthy)
Cleavage Perfect
Fracture Conchoidal,Splintery
Color various

Mohs Hardness

1 Talc 2 Gypsum 3 Calcite 4 Fluorite 5 Apatite 6 Orthoclase 7 Quartz 8 Topaz 9 Corundum 10 Diamond Williamsite
Mohs hardness of Williamsite shown against the ten reference minerals, from talc (1) to diamond (10).
Mohs Reference mineral Williamsite
1 Talc
2 Gypsum
3 Calcite
4 Fluorite ●
5 Apatite
6 Orthoclase
7 Quartz
8 Topaz
9 Corundum
10 Diamond

Crystal System

β a b c Monoclinic a ≠ b ≠ c, α = γ = 90°, β ≠ 90°

Value & Market

Price Tier Budget (< $50/ct)

About Williamsite

La williamsite es una variedad de antigorita (serpentina) de color verde manzana translúcida a semitransparente, a veces con inclusiones negras de cromita. Su apariencia recuerda al jade nefritas verde claro, por lo que se usa como sustituto ornamental. Se talla en cabujones, cuentas y figuras decorativas. El principal yacimiento se encuentra en Lancaster County (Pensilvania, EE. UU.), aunque también aparece en otras localidades con rocas ultramáficas serpentinizadas.

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Frequently Asked Questions

What is Williamsite?
La williamsite es una variedad de antigorita (serpentina) de color verde manzana translúcida a semitransparente, a veces con inclusiones negras de cromita. Su apariencia recuerda al jade nefritas verde claro, por lo que se usa como sustituto ornamental. Se talla en cabujones, cuentas y figuras decor
What is the hardness of Williamsite?
Williamsite has a Mohs hardness of 4.0, making it relatively soft for use in jewelry.
What color is Williamsite?
Williamsite is primarily Various.
How much does Williamsite cost?
Williamsite falls into the Budget (< $50/ct) price range. Prices vary based on color, clarity, cut, and origin.
What is the crystal system of Williamsite?
Williamsite belongs to the Monoclinic crystal system.

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