Mimetite on Galena - NTS 042

Yellow mimetite crystals on galena matrix

Measurements:  59 x 43 x 36 mm

Description: 
Small, pale yellow crystals of mimetite up to about 5 mm long, sit on a matrix of galena with bits of (?)pyrite. The mimetite crystals cover roughly two thirds of the specimen's surface.

Two cavities lined with crystals have very little damage, but, understandably, the other exposed areas with mimetite crystals, have quite a bit of damage.

Weight of Specimen:   158.6 g

Chemical Composition:  Pb5(PO4)3Cl  (mimetite)  

Hardness on Mohs Scale:   (mimetite)  3.5 - 4

Location:  Tsumeb, Northern Namibia.

Specimen Code:   NTS 042

US $ 120

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