Tourmaline Crystals in Quartz Crystal – NER 031

Tourmaline crystals in double terminated quartz crystal

Measurements:  100 x 40 x 28 mm

Description:  Green tourmaline crystals embedded in a double terminated quartz crystal. 

The quartz crystal, although not of high quality, has very little damage to it. 

The longest tourmaline crystal is 57 mm long and  9 mm in diameter. 

Some of the smaller tourmaline crystals are gemmy, but the large one is dark green and flawed. One of the large tourmaline's terminations is damaged.

Weight of Specimen:  145.6 g

Chemical Composition:  SiO2   (quartz)                   Na(Li,Al)3Al6(BO3)3Si6O18(OH)4  (tourmaline)      

Hardness on Mohs Scale:  (quartz)  7                                                                    (tourmaline)  7 - 7.5

Location:  Karibib, Erongo Region, Namibia.

Specimen Code:  NER 031

US $ 120




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