Fredrikssonite
A variety of Ludwigite Group
What is Fredrikssonite?
Market Value Factors
Pricing varies for every rock and mineral, so use these universal factors to gauge Fredrikssonite 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.
Quick Facts
Physical Properties
- Color
- Reddish-brown
- Hardness (Mohs)
- 6
- Rock tumbling
- With care
Chemical Properties
- Chemical Formula
- Mg2(Mn3+,Fe3+)(BO3)O2
- Elements
- B, Mg, Mn, O

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Fredrikssonite FAQs
How do I identify Fredrikssonite?
Fredrikssonite can be identified by its hardness of 6 on the Mohs scale, Reddish-brown color. Look for these key characteristics when examining specimens.
What color is Fredrikssonite?
Fredrikssonite typically appears in Reddish-brown. Color can vary depending on impurities and formation conditions.
How hard is Fredrikssonite?
Fredrikssonite has a hardness of 6 on the Mohs scale. This gives it moderate hardness.
