Kyanite Crystal VAR 050

Kyanite crystal with lovely blue colour when back-lighted.

Measurements:  81 x 20 x 19 mm                                                

Description:  A short, chubby kyanite crystal, partially coated with metallic-coloured mica and bits of quartz. When held against light, the kyanite has a lovely blue colour (electric light - see image middle left. Image right side has natural sun directly behind).

It's very difficult to determine whether there is any damage, due to the crystal's complex structure and its coating.

Weight of Specimen:  58.6 g

Chemical Composition:  Al2SiO5  (kyanite)
                                       KAl2(Si3Al)O10(OH,F)2  (mica

Hardness on Mohs Scale:  (kyanite)  4-7

                                          (quartz)  7

Location:  Zimbabwe, Africa.

Specimen Code:  VAR 050


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