Natural Mixed Quartz Window Crystals x 12 From Brandberg, Namibia

A NOTE FROM NICK 
A tray of 12 natural mixed rare Brandberg Quartz window crystals with clear, Amethyst and Smokey Quartz crystals. 

PRODUCT DESCRIPTION 
Beautiful Brandberg Window Crystals 
These Beautiful Window Crystals are approx. 80 million years old from the Beautiful Brandberg Mountain range in Namibia and grow inside of the " Bubble Cavities"  (Geodes/Vugs) in the  layers of volcanic basalt spew from a previous eruption period. The crystals grow from the silica content in the molten/hot basalt magma and there are usually the tell-tale signs of crystal growth inside from the multiple visible layers formed from hot and colder geological periods of growth. Being so hot in Brandberg, Namibia, the Enhydro/ moisture/ precipitation that forms on/in layers on them them from extreme hot and cold, often boils and bursts and forms the "window"  layers the more layers there are, the more enhydros boiled and bust, leaving larger cavities in the crystals and enabling even more water to gather inside of them. I have seen the enhydros burst in the hot sun while visiting Brandberg (which is heart breaking when this happens but pop and shatter they do!) which is exactly why they are called Window or Venster Quartz.

PRODUCT MINERALS 
Quartz, Amethyst

PRODUCT FEATURES
Phantom, Rainbow Veils, Window, Double Terminated

PRODUCT COLOUR 
Clear, Smokey, Purple

MOHS HARDNESS SCALE
7

PRODUCT DATA
Locality = Brandberg, Namibia
Grade = Medium to A Grade
Size = 43 - 70 mm