Azurite

Formula : Cu3(OH)2(CO3)2

Family: 
Space group: 
Monoclinic - Prismatic H-M Symbol (2/m) Space Group: P 21/a
Dana class: 
16a.2.1.1 (16a) Carbonates - Hydroxyl or Halogen (16a.2)where (A B)3 (XO3)2 Zq (16a.2.1)Dana Group
High temperature: 
Supergeneenvironments
Geological context: 
Secondary mineral in the oxidized zone of copper ore deposits

Dernière mise à jour le 25.01.2021

THERMODYNAMICS

Reaction properties

Azurite + 4H+ ⇌ 2HCO3- + 3Cu+2 + 2H2O

298.15 K, 1 bar log10K: 3.75 ΔH°r:-83679 J·mol-1 (Ref.: Internal calculation)
T(°C) 0 25 60 100 150 200 250 300
log10K 5.05 3.75 2.17 0.63 -1.05 -2.65 -4.35 -6.38