Mineralape
Arfvedsonite
Modris Baum·Public domain·Wikimedia

Arfvedsonite

NaNa2(Fe24Fe3⁺)Si8O22(OH)2
Monoclinic root IMA redefined

Arfvedsonite is a monoclinic amphibole mineral with the chemical formula NaNa2(Fe^2⁺4Fe^3⁺)Si8O22(OH)2. It is a member of the amphibole group, specifically classified under the Strunz system as 9.DE.25. The mineral typically appears black in color and exhibits a vitreous to dull luster. It has a hardness of approximately 5.5 to 6 on the Mohs scale and a density of around 3.1 to 3.3 g/cm³. Arfvedsonite is characterized by its prismatic crystal habit and is commonly found in metamorphic and igneous rock environments.

Composition

Composizione (% in peso)
O
Si
Fe
Na
  • OOxygen48.5%
  • SiSilicon28.4%
  • FeIron14.1%
  • NaSodium8.7%
  • HHydrogen0.3%

Overview

Arfvedsonite is a monoclinic amphibole mineral with the chemical formula NaNa2(Fe^2⁺4Fe^3⁺)Si8O22(OH)2. It is a member of the amphibole group, specifically classified under the Strunz system as 9.DE.25. The mineral typically appears black in color and exhibits a vitreous to dull luster. It has a hardness of approximately 5.5 to 6 on the Mohs scale and a density of around 3.1 to 3.3 g/cm³. Arfvedsonite is characterized by its prismatic crystal habit and is commonly found in metamorphic and igneous rock environments.

Etymology

Arfvedsonite is named after Johan August Arfwedson, a Swedish chemist and mineralogist. The mineral was redefined by the International Mineralogical Association (IMA), but the specific year of its naming or redefinition is not provided in the facts.

Geological genesis

As an amphibole mineral, arfvedsonite is typically of metamorphic or igneous origin. It forms under high-pressure and high-temperature conditions, commonly in mafic and ultramafic rocks that undergo metamorphism or in intrusive igneous environments.

Spiritual meaning and crystal therapy

Spiritual meaning

Arfvedsonite is traditionally associated with protection and grounding. Its dark color symbolizes strength and resilience, helping one stay centered during life's challenges.

Esoteric properties

This stone is said to enhance stability and offer a sense of security. It is believed to support inner strength and help release emotional burdens in a gentle way.

Associated chakra

Arfvedsonite is traditionally linked to the root chakra, due to its black color and grounding energy. It is used to help stabilize and align this chakra for a stronger connection to the earth.

Crystal therapy use

In crystal therapy, arfvedsonite is often placed at the base of a meditation space or worn as jewelry. It is used during grounding meditations or carried to support a sense of calm and protection.

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.