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PrehniteExplore our online store of prehnite gemstones for sale. We carry large amounts of green prehnite in various shapes and sizes online. Choose from hand selected matching pairs, singles or lots in cabochon or faceted cutting style. The soft colored green prehnite stone is perfectly suitable for any type of jewelry; especially jewelry designers enjoy this unique color and appearance. We stock all items and can ship immediately to any place worldwide. |
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Prehnite is a little known gemstone with a rather unique color which has been more popular with collectors searching for new and unusual specimens than with jewelry makers although this is beginning to change.
Prehnite is often described as 'apple green' and is usually found within a range of light to medium green although some yellowish, brownish or even orange tints can also occur.
Prehnite gemstones are very often translucent rather than transparent and this cloudy clarity softens the colors considerably giving them a velvety or mossy appearance.
Read more about gemstones colors here
Prehnite is supposedly the first gemstone to be named after a person - way before Kunzite, Alexandrite or Morganite.
Early on it was thought to be an emerald, then peridot and still later, a tourmaline before its hydrated calcium aluminum silicate chemical formation was properly identified.
Hendrik von Prehn was the governor of the Cape of Good Hope in South Africa and a keen amateur naturalist and mineralogist. Von Prehn came across this mineral in the Karoo dolerites in 1774 and samples found their way to famous German geologist Gottlob Werner. He named this new discovery, Prehnite, after von Prehn in 1788.
Prehnite is basically a green gemstone although there are some which appear more yellow or more blue. The prices do not vary dramatically from color to color - it is the clarity and intensity of the individual stone that may raise the price.
While a classic apple green may be the ideal for a Prehnite, value for money will come down to a personal choice. These gemstones are not very expensive and if you like the look of a yellow cabochon with soft opaque clarity then that is the best buy.
Prehnite gemstones tend to be cabochon cuts - domed tops and flat bottoms - as this shows-off the color and the translucent softness at its best although some faceted gemstones are also available.
The vast majority of Prehnite gemstones weigh between 1 and 10 carats and anything much bigger is quite rare. That being said, the price per carat pretty much remains the same no matter the size - it is the brightness of color and the clarity that will determine the cost.
Lighter colored stones can be from as little as a dollar or two per carat while the best colored versions may rise to $5 - $10 per carat.
For more details please refer to our full Prehnite Info page here
Most Prehnite gemstones are not treated in any way other than the usual cutting and polishing into gemstones.
We have not seen it in action but Prehnite can sometimes emit water when heated!
South Africa, Namibia and Australia are the main sources of Prehnite gemstones.
Prehnite is rated at 6 - 6.5 on Mohs hardness scale which is considered medium durability for jewelry use. Rings would be recommended to have protective settings and bracelets may not be a good idea but earrings, pendants and brooches should not be a problem and its use as a spiritual crystal is unaffected.
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Gems are always measured in Millimeter (mm) Dimensions are given as; Select gems by size, not by weight! Note: 1ct = 0.2g  |
