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Natural Bi Color Tourmaline

Bi color tourmaline is the name given to tourmaline which displays more than one color in the same cystal.


  • Sorry, Bi Color Tourmaline is out of stock!

Bi Color Tourmaline Profile

Color information: Green, red, yellow, orange. brown, green, pink.
Refractive Index: 1.624(+.005, -.005) - 1.644(+.006, -.006)
Chemical Composition: (NaCa)(LI,MgFe,Al)9B3Si6(O,OH)31
Hardness: 7-7.5
Density: 3.06 (.05, +.15)
Crystal Group: Hexagonal
Ocurrence: East Africa, Brazil, USA, Afghanistan, Nigeria, Madagascar.
Sign of the Zodiac: N/A
Month of the year: N/A
Bi Color Tourmaline
Tourmaline is a gemstone noted for the large number of colors in which it occurs. The chemical composition of tourmaline is extremely complex and the variations reveal themselves in a large variety of colors.

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Demantoid Single
From our finest gemstones collection
Demantoid Single Oval Slightly to Moderately included
Size: 7.50 X 6.30 MM
Weight: 2.060 CTS
Shape: Oval
Clarity: Slightly to Moderately included
Usually ships within 24 hours
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USD 1442.00
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Chrysoberyl Closeout
limited time offer, ref# CB10868ac
Chrysoberyl Closeout Mixed shapes Eyeclean to Moderately included
Weight: 13.590 CTS
Shape: Mixed shapes
Clarity: Eyeclean to Moderately included
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USD 134.54
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Today’s Trade/
Best Selling Gems:
Sapphire Sapphire
897 Sapphire ’s available
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Spinel Spinel
378 Spinel ’s available
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Tanzanite Tanzanite
266 Tanzanite ’s available
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Alexandrite Alexandrite
196 Alexandrite ’s available
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Zircon Zircon
281 Zircon ’s available
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Gemstone Variety: Hits Index
Going Up Sapphire +1346 +0.1%
average price USD 325.57 per item
Going Down Alexandrite -1883 -0.1%
average price USD 2656.38 per item
Going Down Tsavorite -529 +-0.0%
average price USD 334.90 per item
Going Down Spinel -104 +-0.0%
average price USD 505.00 per item
Going Down Diamond -2596 -0.2%
average price USD 8701.59 per item
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Gem Library /
Gems Legend and  Lore This month birthstone: Emerald
More from the Gem Library about Birthstones.
Taurus Taurus
April 20 – May 20
Mutable Sign. Very earthy and quiet. Your zodiac stone...more

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