-800x800.JPG "Faceted Oval Shape Prehnite Gemstone 925 Sterling Silver Jewelry Ring")
-500x500.JPG "Faceted Oval Shape Prehnite Gemstone 925 Sterling Silver Jewelry Ring")
Prehnite is a translucent to transparent
gem-quality hydrated calcium aluminum silicate. It was the first mineral to be
named after an individual, and it was also the first mineral to be described
from South Africa, long before South Africa became one of the most important
sources for precious and semi-precious gems. It was first described in 1788
after it was discovered in the Karoo dolerites of Cradock, South Africa.
Prehnite was later named after its discoverer, Colonel Hendrik von Prehn a
Dutch mineralogist and an early governor of the Cape of Good Hope colony.Until
recently, prehite was a rare collector's gemstone, but new deposits have now
made it more readily available. In China, prehnite is sometimes referred to as
'grape jade' owing to nodular formations which often resemble a bunch of
grapes. Its color is usually a soft apple-green, which is quite unique to
prehnite, but it can also occur in rarer colors including yellow, orange and
blue.
Description
Stone - Prehnite
Stone Size - 14X18 MM
Stone Shape - Oval
Stone Color - Green
Stone Cutting - Faceted
Weight - 6.45 Gms
SKU - CSR-2263
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