Khaidarkanite

Formula: Cu4Al3(OH)14F3 · 2H2O; Originally given as Na0.34Cu4Al3(OH)14F3 · 2H2O.

Colour: Light blue or bright sky-blue

Lustre: Vitreous

Hardness:

Specific Gravity: 2.84

Crystal System: Monoclinic

Member of Cyanotrichite group. Visually similar to cyanotrichite and carbonatecyantrichite.

Name: Named after the discovery locality.

Type Locality: Khaidarkan Sb-Hg deposit, Batken Region, Kyrgyzstan