Mimetite Crystals  and (?)Calcite Blades on Matrix - NTS 018

Measurements:  34 x 30 x 26 mm

Description:  Small, sparkling, light yellow mimetite crystals, together with delicate blades of (?)calcite, sit on a (to us, unknown) matrix, together with small, clear (to us, unknown) crystals. A good percentage of the mimetite needles are undamaged.

Weight of Specimen:  26.3 g 

Chemical Composition:  Pb₅(PO₄)₃Cl  (mimetite)
                                       CaCO₃  (calcite) 

Hardness on Mohs Scale:  (mimetite)  3.5 - 4
                                          (calcite)  3                                 

Location:  Tsumeb, Northern Namibia.

Specimen Code:  NTS 018