Ajoite in Quartz Crystal Group - VAR 110

Measurements:  65 x 36 x 28 mm

Description:  A quartz group with natural (unpolished) points containing ajoite.

The termination points have only a few very minute nicks. Lower down the specimen are pressure marks.

Weight of Specimen:  78 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 110

US $ 650