Thomsenolite
A variety of Minerals
What is Thomsenolite?
Thomsenolite is a mineral with formula: NaCaAlF6·H2O. It is an alteration product of cryolite. It was discovered in 1868 in Ivigtut, Greenland and named for Hans Peter Jorgen Julius Thomsen (1826–1909).
Market Value Factors
Pricing varies for every rock and mineral, so use these universal factors to gauge Thomsenolite 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.
Thomsenolite Localities Map
See where Thomsenolite is found with a localities map, collecting zones, and geology context. Generate a sample map preview below.
Quick Facts
Physical Properties
- Color
- Colourless, white, pale lilac; brownish or reddish tinted due to staining; colourless in transmitted light.
- Hardness (Mohs)
- 2
- Density
- 2.986 g/cm³
- Streak
- White
Chemical Properties
- Chemical Formula
- NaCa[AlF6] · H2O
- Elements
- Al, Ca, F, H, Na, O
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Thomsenolite FAQs
How do I identify Thomsenolite?
Thomsenolite can be identified by its hardness of 2 on the Mohs scale, Colourless color. Look for these key characteristics when examining specimens.
What color is Thomsenolite?
Thomsenolite typically appears in Colourless, white, pale lilac; brownish or reddish tinted due to staining; colourless in transmitted light.. Color can vary depending on impurities and formation conditions.
How hard is Thomsenolite?
Thomsenolite has a hardness of 2 on the Mohs scale. This makes it a soft mineral that can be scratched easily.
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