Quartz Crystal with Analcime - NBB 118

Measurements:  60 x 24 x 22 mm

Description:  A milky to clear quartz crystal with a patch of amethyst colouring and small (mostly gemmy) analcime crystals on one of its temination, and three of its shaft facets.

The termination gas a few minute nicks, while the rest of the crystal has a few pressure marks and some damage where it parted from lits matrix.

Weight of Specimen:  49.6 g  

Chemical Composition: SiO₂  (quartz)
                                      NaAl(Si₂O₆)•(H₂O)  (analcime)                                                            CaCO₃  (calcite)
                                                                                              Hardness on Mohs Scale:  (quartz)  7   
                                          (analcime) 5  
                                          (calcite)  3   

Location:  Brandberg, Namibia.

Specimen Code:  NBB 118

US $ 65