Humboldtine
A variety of Minerals
What is Humboldtine?
Market Value Factors
Pricing varies for every rock and mineral, so use these universal factors to gauge Humboldtine 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
- Yellow to amber-yellow
- Hardness (Mohs)
- 1.5 - 2
- Rock tumbling
- Not recommended
- Density
- 2.307 g/cm³
Chemical Properties
- Chemical Formula
- Fe2+(C2O4) · 2H2O
- Elements
- C, Fe, H, O
Also Known As
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Humboldtine FAQs
How do I identify Humboldtine?
Humboldtine can be identified by its hardness of 1.5 - 2 on the Mohs scale, Yellow to amber-yellow color. Look for these key characteristics when examining specimens.
What color is Humboldtine?
Humboldtine typically appears in Yellow to amber-yellow. Color can vary depending on impurities and formation conditions.
How hard is Humboldtine?
Humboldtine has a hardness of 1.5 - 2 on the Mohs scale. This makes it a soft mineral that can be scratched easily.
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