Arfvedsonite
A variety of Arfvedsonite Root Name Group

What is Arfvedsonite?
Arfvedsonite is an iron-rich sodium silicate that forms a prism or needle-like crystals. It was named after the Swedish chemist Johan August Arfwedson, who discovered lithium. A very rare mineral, arfvedsonite is popular among collectors, and the specimens mined in Malawi are particularly popular.
Uses & Applications
Arfvedsonite is prized as a decorative object most often in its natural, attractive crystalline form. This rather rare mineral is at times cut and polished for use in the jewelry industry, where cabochons are cut as two-colored metallic-looking inset stones for rings and bracelets, as well as being fashioned into beads.
Healing Properties
If you only see the darkness within yourself, arfvedsonite may be able to put an end to this; it might just help you to see the light. Arfvedsonite is believed to be a stone of spiritual growth. It connects with the third eye and throat chakras, allowing you to bring order to your thoughts and communicate better.
Market Value Factors
Pricing varies for every rock and mineral, so use these universal factors to gauge Arfvedsonite before comparing listings or appraisals.
Size & Weight
Larger, intact specimens usually command higher prices.
Rarity & Demand
Scarce material or popular varieties sell at a premium.
Condition & Finish
Chips, repairs, and heavy wear lower value; clean prep helps.
Treatment & Provenance
Untreated specimens with documented locality are prized.
Arfvedsonite Localities Map
See where Arfvedsonite is found with a localities map, collecting zones, and geology context. Generate a sample map preview below.
Associated Chakras
Key Characteristics
Composition of Arfvedsonite
Na2O, FeO, Fe2O3, SiO2, H2O
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Quick Facts
Physical Properties
- Color
- Bluish-black to black.
- Hardness (Mohs)
- 5 - 6
- Density
- 3.33 g/cm³
- Streak
- Deep bluish gray, gray-green
- Luster
- Vitreous
- Crystal System
- Monoclinic
Chemical Properties
- Chemical Formula
- [Na][Na2][Fe<sup>2+</sup><sub>4</sub>Fe<sup>3+</sup>]Si8O22(OH)2
- Elements
- Fe, H, Na, O, Si
Also Known As

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Arfvedsonite FAQs
How do I identify Arfvedsonite?
Arfvedsonite can be identified by its hardness of 5 - 6 on the Mohs scale, Bluish-black to black. color, Vitreous luster, Monoclinic crystal system. Look for these key characteristics when examining specimens.
What color is Arfvedsonite?
Arfvedsonite typically appears in Bluish-black to black.. Color can vary depending on impurities and formation conditions.
How hard is Arfvedsonite?
Arfvedsonite has a hardness of 5 - 6 on the Mohs scale. This gives it moderate hardness.
What is the composition of arfvedsonite of Arfvedsonite?
Na2O, FeO, Fe2O3, SiO2, H2O