Pyrophyllite

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Physical & Optical Properties

Category Collector Gems
Mohs Hardness 1,0 – 2,0
Specific Gravity 2,65 – 2,9
Refractive Index 1,534 – 1,601
Crystal System Monoclinic
Luster Pearly,Greasy
Cleavage Perfect
Fracture Splintery
Color various
Birefringence 0,05
Pleochroism Nil

Mohs Hardness

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

Where to Buy Pyrophyllite

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About Pyrophyllite

La pirofilita es un filosilicato de aluminio blando con lustre aperlado a sedoso que varía en color del blanco y el amarillo pálido al verde y el gris, formando habitualmente agregados foliados o radiados. Apreciada en la antigua China para la talla de las piedras Shoushan utilizadas en sellos y figuras decorativas, ha sido durante siglos el material preferido de los artistas chinos. Hoy en día el material de grano fino verde o crema sigue siendo trabajado en pequeñas tallas y objetos de colección.

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Frequently Asked Questions

What is Pyrophyllite?
La pirofilita es un filosilicato de aluminio blando con lustre aperlado a sedoso que varía en color del blanco y el amarillo pálido al verde y el gris, formando habitualmente agregados foliados o radiados. Apreciada en la antigua China para la talla de las piedras Shoushan utilizadas en sellos y fig
What is the hardness of Pyrophyllite?
Pyrophyllite has a Mohs hardness of 1.0 to 2.0, making it relatively soft for use in jewelry.
What color is Pyrophyllite?
Pyrophyllite is primarily Various.
How much does Pyrophyllite cost?
Pyrophyllite falls into the Budget (< $50/ct) price range. Prices vary based on color, clarity, cut, and origin.
What is the crystal system of Pyrophyllite?
Pyrophyllite belongs to the Monoclinic crystal system.