Ganophyllite
A variety of Minerals
What is Ganophyllite?
Ganophyllite's name came from the greek words leaf (φύλλον) and luster (γανωμα). It got its name from Axel Hamberg in 1890. It is a member of Ganophyllite group, among with eggletonite and tamaite. It has a barely detectable potassium radioactivity. The formula includes potassium (K) if it is ganophyllite, eggletonite includes natrium (Na), and tamaite includes calcium (Ca) in their formula.
Market Value Factors
Pricing varies for every rock and mineral, so use these universal factors to gauge Ganophyllite 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.
Ganophyllite Localities Map
See where Ganophyllite is found with a localities map, collecting zones, and geology context. Generate a sample map preview below.
Quick Facts
Physical Properties
- Hardness (Mohs)
- 4 - 4.5
Chemical Properties
- Chemical Formula
- (K,Na,Ca)2Mn8(Si,Al)12(O,OH)32 · 8H2O
- Elements
- Al, Ca, H, K, Mn, Na, O, Si
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Ganophyllite FAQs
How do I identify Ganophyllite?
Ganophyllite can be identified by its hardness of 4 - 4.5 on the Mohs scale. Look for these key characteristics when examining specimens.
How hard is Ganophyllite?
Ganophyllite has a hardness of 4 - 4.5 on the Mohs scale. This gives it moderate hardness.
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