Covellite

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Physical & Optical Properties

Category Collector Gems
Mohs Hardness 1,5 – 2,0
Specific Gravity 4,6 – 4,76
Refractive Index 1,45 – 2,62
Crystal System Hexagonal
Luster Resinous,Pearly,Dull (Earthy),Submetallic
Cleavage Perfect
Fracture Uneven
Color various
Birefringence 1,17
Pleochroism Marked, deep blue to pale blue.

Mohs Hardness

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

Crystal System

a a c Hexagonal a = b ≠ c, α = β = 90°, γ = 120°

Value & Market

Price Tier Budget (< $50/ct)

Where to Buy Covellite

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About Covellite

La covellita es un mineral de sulfuro de cobre de color azul índigo vívido a azul profundo, con un extraordinario lustre metálico que varía entre azul oscuro, púrpura y dorado según el ángulo de la luz y la orientación de la superficie. Se encuentra en las zonas oxidadas de los yacimientos de cobre, especialmente en Butte, Montana, y en el volcán italiano Vesubio; es demasiado blanda para joyería, pero se colecciona por su espectacular iridiscencia metálica. Las láminas pulidas exhiben una interacción casi sobrenatural de azul profundo y dorado cobrizo.

Science FYI Family

Frequently Asked Questions

What is Covellite?
La covellita es un mineral de sulfuro de cobre de color azul índigo vívido a azul profundo, con un extraordinario lustre metálico que varía entre azul oscuro, púrpura y dorado según el ángulo de la luz y la orientación de la superficie. Se encuentra en las zonas oxidadas de los yacimientos de cobre,
What is the hardness of Covellite?
Covellite has a Mohs hardness of 1.5 to 2.0, making it relatively soft for use in jewelry.
What color is Covellite?
Covellite is primarily Various.
How much does Covellite cost?
Covellite falls into the Budget (< $50/ct) price range. Prices vary based on color, clarity, cut, and origin.
What is the crystal system of Covellite?
Covellite belongs to the Hexagonal crystal system.