Tetraferriphlogopite
A variety of Minerals
What is Tetraferriphlogopite?
Phlogopite is a yellow, greenish, or reddish-brown member of the mica family of phyllosilicates. It is also known as magnesium mica. Phlogopite is the magnesium endmember of the biotite solid solution series, with the chemical formula KMg3AlSi3O10(F,OH)2. Iron substitutes for magnesium in variable amounts leading to the more common biotite with higher iron content. For physical and optical identification, it shares most of the characteristic properties of biotite.
Market Value Factors
Pricing varies for every rock and mineral, so use these universal factors to gauge Tetraferriphlogopite 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.
Tetraferriphlogopite Localities Map
See where Tetraferriphlogopite is found with a localities map, collecting zones, and geology context. Generate a sample map preview below.
Quick Facts
Chemical Properties
- Chemical Formula
- KMg3(Fe3+Si3O10)(OH,F)2
- Elements
- F, Fe, H, K, Mg, O, Si
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