Chrysocolla

(Cu,Al)2H2Si2O5(OH)4 · nH2O

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Recognizable by its brilliant blue to green tones, chrysocolla is a hydrated copper phyllosilicate with the approximate formula (Cu,Al)2H2Si2O5(OH)4 nH2O. It forms in the oxidation zones of copper deposits, commonly associated with malachite, azurite, and turquoise. The mineral is translucent with a vitreous luster and a white to pale-blue streak, showing no cleavage and a conchoidal fracture. Habits are botryoidal, massive, or stalactitic. Its hardness varies considerably, from 2 to 4, and its specific gravity from 1.93 to 2.40. Chrysocolla is worked as an ornamental stone, valued for the vivid turquoise-like coloration it draws from copper. Both its density and its hardness vary widely, reflecting a variable water content and frequent admixture with other minerals.

Chrysocolla is a hydrated copper phyllosilicate mineral known for its brilliant blue to green colors. It is commonly found in oxidation zones of copper deposits, often associated with malachite, azurite, and turquoise.

Sistema Cristalino Orthorhombic
Clase Mineral 09 Silicates
Dureza Mohs 2.0-4.0
Gravedad Específica 1.93-2.40
Color Blue, blue-green, green, turquoise
Brillo Vitreous
Raya White to pale blue
Exfoliación None
Fractura Conchoidal
Transparencia Translucent
Hábito Cristalino Botryoidal, massive, stalactitic

Dureza Mohs

Mohs Hardness: 2,0 – 4,0
1 Soft10 Hard
Chrysocolla has a Mohs hardness of 2–4 on the 1–10 mineral hardness scale.
Dureza Mohs Reference Mineral
1 Talc
2 Gypsum
3 Calcite
4 Fluorite
5 Apatite
6 Orthoclase
7 Quartz
8 Topaz
9 Corundum
10 Diamond

Sistema Cristalino

Orthorhombic
Chrysocolla crystallizes in the Orthorhombic crystal system.
Propiedad Value
Sistema Cristalino Orthorhombic
Axial Relationships a ≠ b ≠ c, α = β = γ = 90°

Frequently Asked Questions

What is the hardness of Chrysocolla?
Chrysocolla has a Mohs hardness of 2.0-4.0.
What crystal system does Chrysocolla belong to?
Chrysocolla crystallizes in the Orthorhombic crystal system.
What color is Chrysocolla?
Chrysocolla is typically Blue, blue-green, green, turquoise.
What type of luster does Chrysocolla have?
Chrysocolla exhibits a Vitreous luster.
What is the chemical formula of Chrysocolla?
The chemical formula of Chrysocolla is (Cu,Al)2H2Si2O5(OH)4 · nH2O.