Ajoite in Quartz Crystal - VAR 111

Measurements:  81 x 43 x 40 mm

Description:  A quartz crystal with ajoite inclusions. 

The termination is all natural (no polished faces) and appears to be without any damage. Some of the surfaces have a partial covering of (to us, unknown) mineral.

Lower down the crystal are natural pressure marks.

Weight of Specimen:  142 g  

Chemical Composition:  SiO₂  (quartz and chalcedony)
                                        K_2.25Na_1.75Cu₂₀Al₃Si₂₉O₇₆(OH)₁₆•8(H₂O) (ajoite) 

Hardness on Mohs Scale:  7  (quartz)
                                           3.5  (ajoite)

Location:  Musina, Limpopo Province, South Africa.

Specimen Code:  VAR 111

US $ 700