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Chalcophyllite
Christian Rewitzer·CC BY-SA 3.0·Wikimedia

Chalcophyllite

Cu18Al2(AsO4)4(SO4)3(OH)24·36H2O
Trigonal heart IMA grandfathered

Chalcophyllite is a hydrous copper aluminum arsenate sulfate hydroxide mineral with the chemical formula Cu18Al2(AsO4)4(SO4)3(OH)24·36H2O. It crystallizes in the trigonal crystal system and is classified as a hydrous sulfate in the Strunz system (8.DF.30) and as a member of the Dana classification (43.5.14.1). The mineral is characterized by its softness, with a hardness of approximately 2.5 on the Mohs scale, a low density, and a pearly to vitreous luster. It typically exhibits a green to greenish-blue color and is known for its fibrous or radiating crystal habit. Chalcophyllite belongs to the group of secondary minerals formed in oxidized copper deposits.

Composition

Composizione (% in peso)
O
Cu
As
  • OOxygen45.4%
  • CuCopper36.9%
  • AsArsenic9.7%
  • HHydrogen3.1%
  • SSulfur3.1%
  • AlAluminium1.7%

Overview

Chalcophyllite is a hydrous copper aluminum arsenate sulfate hydroxide mineral with the chemical formula Cu18Al2(AsO4)4(SO4)3(OH)24·36H2O. It crystallizes in the trigonal crystal system and is classified as a hydrous sulfate in the Strunz system (8.DF.30) and as a member of the Dana classification (43.5.14.1). The mineral is characterized by its softness, with a hardness of approximately 2.5 on the Mohs scale, a low density, and a pearly to vitreous luster. It typically exhibits a green to greenish-blue color and is known for its fibrous or radiating crystal habit. Chalcophyllite belongs to the group of secondary minerals formed in oxidized copper deposits.

Etymology

The name chalcophyllite is derived from the Greek words 'chalkos' meaning copper and 'phyllon' meaning leaf, referring to its copper content and leaf-like appearance.

Geological genesis

Chalcophyllite is a secondary mineral that forms in the oxidation zones of copper deposits. It typically develops through the alteration of primary copper sulfides in the presence of arsenic and sulfur, under conditions of low temperature and high humidity.

Occurrence

Chalcophyllite is typically found in the oxidized zones of copper deposits. Specific localities are not provided in the facts, but it is known to occur in association with other secondary copper minerals in such environments.

Spiritual meaning and crystal therapy

Spiritual meaning

Chalcophyllite is traditionally associated with emotional healing and spiritual growth. Its copper content is believed to support transformation and the release of old patterns, encouraging a deeper connection with one's inner truth and higher purpose.

Esoteric properties

This stone is said to enhance intuition and promote inner peace. It is believed to support emotional balance and is associated with the calming of restless thoughts, aiding in spiritual exploration and self-awareness.

Associated chakra

Chalcophyllite is traditionally linked to the heart chakra due to its greenish hues and associations with emotional healing and compassion. It is believed to help open the heart to love and forgiveness.

Crystal therapy use

In crystal therapy, chalcophyllite is often placed on the heart during meditation or worn as jewelry to support emotional healing. It is also used in crystal grids for spiritual protection and to enhance intuitive practices.

Information on crystal therapy is provided for cultural and traditional purposes only. It does not replace medical advice or treatment. Always consult a doctor for health issues.