Schorl Crystal Cluster NAM 017

Schorl crystal cluster

Measurements:  37 x 30 x 27 mm

Description:  A cluster of schorl crystals with a piece of quartz. The schorl has a good lustre.

The specimen has a few nicks.

Weight of Specimen:  26.7 g

Chemical Composition:   NaFe2+3Al6Si6O18(BO3)3(OH)4  (schorl)
                                       SiO2  (quartz)                 

Hardness on Mohs Scale:  (schorl)  7.5
                                          (quartz)  7 

Location:  Erongo Mountains, Erongo Region, Namibia.

Specimen Code:  NAM 017

R 40


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