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Natural Prehnite

Prehnite is an orthorhombic mineral which is rarely found as distinct crystals. Found in association with volcanic rocks, it usually forms in aggregates with botryoidal habit. Prehnite is rarely clean enough for faceting but some is cut en cabochon and may also display a cat's eye in some cases.


  • There are 4 Prehnite gemstones available at Multicolour.com
  • Prehnite(s) are organized in the following categories: Calibrated,  gemstones.
  • Our most expensive Prehnite is USD 53.76 and largest Prehnite weight is CTS 4.99.
  • Our cheapest Prehnite is USD 26.10 and smallest Prehnite weight is CTS 2.61.

Find your Prehnite

Our Prehnite(s) are available in various shapes, sizes and colors. 4 Prehnite(s), too many to look through? You may select any combination of search options. Colors grade into each other and you can search for more than one color at once. For a better selection, try selecting two or three colors, -- your first choice plus the two closest colors.

Color range
green
greenish blue

Prehnite Profile

Color information: yellow green, brown, yellow brown, oil green
Refractive Index: 1.61 - 1.64
Chemical Composition: (CA2Al2SI3O10(OH)2)
Hardness: 6
Density: 2.80 - 2.95
Crystal Group: Orthorhombic
Ocurrence: China, France, U.S.A., Scotland, Australia
Sign of the Zodiac: N/A
Month of the year: N/A
Prehnite Prehnite

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Finest gems/
Chrome Tourmaline Single
From our finest gemstones collection
Chrome Tourmaline Single Cushion Eye clean
Size: 12.30 X 9.90 MM
Weight: 6.790 CTS
Shape: Cushion
Clarity: Eye clean
Usually ships within 24 hours
OUR PRICE
USD 3666.60
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Deal of the Day/
Danburite Single
limited time offer, ref# YDN110ab
Danburite Single Oval Slightly included
Size: 8.20 X 6.40 MM
Weight: 1.350 CTS
Shape: Oval
Clarity: Slightly included
Usually ships within 24 hours
10 % OFF, YOU SAVE 3.63 USD
NOW ONLY
USD 32.62
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Today’s Trade/
Best Selling Gems:
Sapphire Sapphire
1573 Sapphire ’s available
Browse gems | Learn More
Spinel Spinel
381 Spinel ’s available
Browse gems | Learn More
Alexandrite Alexandrite
300 Alexandrite ’s available
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Tanzanite Tanzanite
468 Tanzanite ’s available
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Zircon Zircon
236 Zircon ’s available
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Gemstone Variety: Hits Index
Going Down Amber -8513 -0.3%
average price USD 174.38 per item
Going Up Sapphire +707 +0.0%
average price USD 371.50 per item
Going Down Alexandrite -1958 -0.4%
average price USD 1774.16 per item
Going Down Anatase -186 -0.1%
average price USD 185.71 per item
Going Down Turquoise -1174 -0.4%
average price USD 55.07 per item
See more real time gem reports.
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Gem Library /
Gems Legend and  Lore This month birthstone: Turquoise
More from the Gem Library about Birthstones.
Sagittarus Sagittarius
November 22 – December 21
Mutable Sign. Goes at a great gallop. Your zodiac stone...more

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