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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/
Sapphire Single
From our finest gemstones collection
Sapphire Single Oval Eye clean to Slightly included
Size: 11.10 X 9.00 MM
Weight: 6.660 CTS
Shape: Oval
Clarity: Eye clean to Slightly included
Usually ships within 24 hours
OUR PRICE
USD 7769.00
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Deal of the Day/
Danburite Single
limited time offer, ref# XDN514ah
Danburite Single Pear Eye clean
Size: 12.90 X 8.50 MM
Weight: 3.280 CTS
Shape: Pear
Clarity: Eye clean
Usually ships within 24 hours
10 % OFF, YOU SAVE 5.58 USD
NOW ONLY
USD 50.18
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Today’s Trade/
Best Selling Gems:
Sapphire Sapphire
1473 Sapphire ’s available
Browse gems | Learn More
Spinel Spinel
367 Spinel ’s available
Browse gems | Learn More
Tanzanite Tanzanite
445 Tanzanite ’s available
Browse gems | Learn More
Alexandrite Alexandrite
303 Alexandrite ’s available
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Zircon Zircon
257 Zircon ’s available
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Gemstone Variety: Hits Index
Going Down Amber -1108 +-0.0%
average price USD 177.84 per item
Going Down Sapphire -2324 -0.2%
average price USD 348.04 per item
Going Up Alexandrite +1014 +0.3%
average price USD 1660.06 per item
Going Down Color Change Garnet -138 -0.1%
average price USD 735.06 per item
Going Down Anatase -7802 -5.1%
average price USD 185.71 per item
See more real time gem reports.
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Gem Library /
Gems Legend and  Lore This month birthstone: Sapphire
More from the Gem Library about Birthstones.
Libra Libra
September 23 – October 22
Cardinal Sign. Libra is artistic and harmonious. Your zodiac stone...more

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