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.

결정계 Orthorhombic
광물 분류 09 Silicates
모스 경도 2.0-4.0
비중 1.93-2.40
색상 Blue, blue-green, green, turquoise
광택 Vitreous
조흔색 White to pale blue
벽개 None
단구 Conchoidal
투명도 Translucent
결정 습성 Botryoidal, massive, stalactitic

모스 경도

Mohs Hardness: 2.0 – 4.0
1 Soft10 Hard
Chrysocolla has a Mohs hardness of 2–4 on the 1–10 mineral hardness scale.
모스 경도 Reference Mineral
1 Talc
2 Gypsum
3 Calcite
4 Fluorite
5 Apatite
6 Orthoclase
7 Quartz
8 Topaz
9 Corundum
10 Diamond

결정계

Orthorhombic
Chrysocolla crystallizes in the Orthorhombic crystal system.
특성 Value
결정계 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.