Fluorphlogopite

Formula : KMg3(AlSi3)O10(F)2

Space group: 
Monoclinic - PrismaticH-M Symbol (2/m) Space Group: C 2/m
Dana class: 
71.2.2b.1 (71) Phyllosilicate Sheets of Six-Membered Rings (71.2)with 2:1 Layers (71.2.2b)Mica Group (Biotite subgroup)
High temperature: 
Medium to high temperature mineral, 650C C is a temperature estimated from a deposit.
Geological context: 
Occurs commonly in high-grade metamorphic environment- Ultramafic igneous rocks, lava fissures and breccias, contact and regional metamorphic limestones and dolomites.

Dernière mise à jour le 25.01.2021

THERMODYNAMICS

Individual properties (298.15 K)
T(°C) 0 25 60 100 150 200 250 300
log10K 28.82 24.02 18.12 12.52 6.73 1.79 -2.77 -7.39