Very Beautiful Rare Manganotantalite.

Item Information

Dimensions (mm) 7 x 5 x 2mm
Weight (carats) 2 carats
Colors
No Treatment
Clarity (I)

Very Beautiful Rare Manganotantalite

Origin Afghanistan.

Color : Red

Clarity Inclusion

Manganotantalite

Manganotantalite is a manganese-rich variety of Tantalite. It is formed when manganese replaces iron. Manganotantalite is an intense red transparent material that is suitable for cutting into magnificent faceted gems.

General Information

A variety or type of:Tantalite

Other Names/Trade Names: Tantalite- Mn)

Chemical Formula :- MnTa2O6

Physical Properties of Manganotantalite

Mohs Hardness - 5 5 to 6.5

Specific Gravity - 7 73 to 7.97

Cleavage Quality - Perfect .

Optical Properties of Manganotantalite

Refractive Index - 2 19 to 2.34

Optical Character - Biaxial +

Birefringence - 0.015

Colour

Colour (General) - Scarlet-red to dark red.

Transparency - Transparent

Lustre - Vitreous

Crystallography of Manganotantalite

Crystal System - Orthorhombic

Habit - Short prismatic crystals

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Closed

4 bids placed so far
$5.00 jonfrmr
22nd Sep 2017 3:13am PDT
$4.00 djwaxrola
22nd Sep 2017 3:13am PDT
$2.00 djwaxrola
20th Sep 2017 9:52pm PDT
$1.00 mjfzz
19th Sep 2017 2:58pm PDT
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Audit Information

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Pricing & Details

No reserve
Bid Increment $1.00
Starting Bid $1.00
Auction ID 697033
Watchers 2 watching
Viewed 125 times
Starts 19th Sep 2017 11:20am PDT
Ends 22nd Sep 2017 11:20am PDT

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