Hörnesite
A variety of Minerals

What is Hörnesite?
Market Value Factors
Pricing varies for every rock and mineral, so use these universal factors to gauge Hörnesite 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.
Hörnesite Localities Map
See where Hörnesite is found with a localities map, collecting zones, and geology context. Generate a sample map preview below.
Quick Facts
Physical Properties
- Color
- White; colorless in transmitted light.
- Hardness (Mohs)
- 1
- Density
- 2.57 g/cm³
- Streak
- White to colorless
Chemical Properties
- Chemical Formula
- Mg3(AsO4)2 · 8H2O
- Elements
- As, H, Mg, O

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Hörnesite FAQs
How do I identify Hörnesite?
Hörnesite can be identified by its hardness of 1 on the Mohs scale, White; colorless in transmitted light. color. Look for these key characteristics when examining specimens.
What color is Hörnesite?
Hörnesite typically appears in White; colorless in transmitted light.. Color can vary depending on impurities and formation conditions.
How hard is Hörnesite?
Hörnesite has a hardness of 1 on the Mohs scale. This makes it a soft mineral that can be scratched easily.


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