Aquamarine on Quartz and Goethite - NERA 023

Small aquamarine crystals on quartz and goethite matrix




Measurements:  21 x 18 x 11 mm

Description:  Small aquamarine crystals sit on a quartz and goethite matrix, with bits of hard clay. 

One of the aquamarine crystals has a small flaw.

Weight of Specimen:  2.5 g

Chemical Composition:  Be3Al2Si6O18  (aquamarine
                                       SiO2  (quartz) 
                                        α-FeO(OH)  (goethite) 

Hardness on Mohs Scale:  (aquamarine) 7.5 - 8.0     
                                          (quartz)
                                          (goethite)  5 - 5.5

Location:  Erongo, Namibia.

Specimen Code:  NERA 023

US $ 12
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