Magnussonite
A variety of Minerals
What is Magnussonite?
Market Value Factors
Pricing varies for every rock and mineral, so use these universal factors to gauge Magnussonite 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.
Magnussonite Localities Map
See where Magnussonite is found with a localities map, collecting zones, and geology context. Generate a sample map preview below.
Quick Facts
Physical Properties
- Color
- Emerald- or grass-green; bluish green; pale green, olive-green. greenish-tan
- Hardness (Mohs)
- 3.5 - 4
- Density
- 4.55 g/cm³
- Streak
- White
Chemical Properties
- Chemical Formula
- Mn10As6O18(OH,Cl)2 initial (Moore & Araki, 1979) structural formula: Mn2+18[As3+6Mn+O18]2Cl2 but it is not necessarily confirmed (or disproved) by further studies
- Elements
- As, Cl, H, Mn, O
Identify Magnussonite Instantly
- Snap a photo, get instant results
- 6,700+ rocks, minerals & crystals
- Discover collecting spots near you
Magnussonite FAQs
How do I identify Magnussonite?
Magnussonite can be identified by its hardness of 3.5 - 4 on the Mohs scale, Emerald- or grass-green; bluish green; pale green color. Look for these key characteristics when examining specimens.
What color is Magnussonite?
Magnussonite typically appears in Emerald- or grass-green; bluish green; pale green, olive-green. greenish-tan. Color can vary depending on impurities and formation conditions.
How hard is Magnussonite?
Magnussonite has a hardness of 3.5 - 4 on the Mohs scale. This gives it moderate hardness.
%252FAbenakiite-(ce)-01.jpg&size=small)
