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Pokrovskite

Year of discovery: 1984 (Zlatogorsk intrusion, Kazakhstan), 2015 (Japan)

Locality list: A locality of pokrovskite

• Mg₂(CO₃)(OH)₂
• [Mg²⁺₂][(OH)₂|CO₃]^4-

• Class: Malachite group
• Class: Carbonate - Hydroxide

• Mg => (Cu,Ni): Glaukosphaerite
• Mg => (Cu,Co): Kolwezite
• Mg => (Mg,Cu): Mcguinnessite
• Mg => (Cu,Zn): Rosasite
• Mg => Cu: Malachite
• Mg => Ni: Nullaginite
• Mg => Fe: Chukanovite

• Color: Yellowish brown, White
• Streak: White
• Luster: Vitreous
• Diaphaneity: Transparent-Translucent

• Cleavage: Perfect
• Hardness: 3
• Density: 2.5

• System: Monoclinic
• Group: 2/m, P2₁/a
• Lattice: a=9.4, b=12.3, c=3.4, β=96.6