Quartz Crystals on Hematite - SKMF 026

Rare and interesting combination of quartz Crystals and other minerals on hematite

Measurements:  77 x 58 x 32 mm

Description:   A rarity for the Kalahari Manganese Fields. Quartz crystals up to 38 mm long, on a matrix of hematite and (?)manganite. 

The combination of glittering quartz crystals on shiny black hematite, bits of reddish-brown iron oxide as well as minute yellow crystals of an unknown mineral, make this a very interesting specimen. 

The main quartz crystal is double terminated. Except for a few small nicks, the main side of the specimen appears to be undamaged.

Weight of Specimen:  178 g

Chemical Composition:  SiO2  (quartz)  
                                       α -Fe2O3   (hematite)    

Hardness on Mohs Scale:  (quartz)  7
                                          (hematite)  5 - 6

Location:  Kalahari Manganese Fields, Kuruman area, South Africa.

Specimen Code:  SKMF 026

US $ 250

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