6 Carat Tanzanite Emerald (12.37×9.16mm, Blue)
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64 mm
| Your settings | |
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Ring |
Gold |
Skin tone |
Light |
Ring diameter |
16.9 mm |
Ring width |
3.0 mm |
Finger length |
64 mm |
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Ring diameter:
16.9 mm
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Additional Info
Tanzanite is a blue variety of the mineral Zoisite. It got its name after the East African country of Tanzania, were it was discovered in 1967. Most of Tanzanite on the market today is heat treated.
Where to buy?
For certified gemstones, high-end gemstone jewelry, and birthstone jewelry, see Blue Nile
Gem Details
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Name:
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Tanzanite |
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Mineral Class:
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Zoisite |
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Shape:
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Emerald |
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Chemical Formula:
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Ca2Al3(SiO4)3(OH) |
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Crystal Structure:
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Orthorhombic |
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Hardness:
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6-6.5 |
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Specific Gravity
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3.3 |
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Carat weight:
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6 ct |
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Gram weight:
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1.2 g (0.0423 ounces) |
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Points:
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600 pts |
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Length:
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12.37 mm |
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Width:
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9.16 mm |
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Est. face-up size:
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105.38 mm² |
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Volume:
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363.64 mm³ |
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Length-to-width ratio:
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1.35 |
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Refractive Index:
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1.69 - 1.70 |
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Cleavage:
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1,1 |
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Luster:
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Vitreous |
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Birefringence:
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0.009 |
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Wearability:
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Very good |
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Care Instructions:
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gentle wear recommended |
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Color:
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|
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Birthstone:
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Tanzanite is a birthstone for the month of December |
Popular comparisons:
- 6ct Tanzanite (Emerald, Blue, 12.37 x 9.16) vs. 13ct Tanzanite (Emerald, Blue, 16.01 x 11.86)
- 6ct Tanzanite (Emerald, Blue, 12.37 x 9.16) vs. 8ct Tanzanite (Emerald, Blue, 13.62 x 10.09)
- 6ct Tanzanite (Emerald, Blue, 12.37 x 9.16) vs. 12.5ct Tanzanite (Emerald, Blue, 15.8 x 11.7)
- 6ct Tanzanite (Emerald, Blue, 12.37 x 9.16) vs. 1.5ct Tanzanite (Emerald, Blue, 7.79 x 5.77)
- 6ct Tanzanite (Emerald, Blue, 12.37 x 9.16) vs. 1ct Diamond (Cushion, White, 5.83 x 5.83)
- 6ct Tanzanite (Emerald, Blue, 12.37 x 9.16) vs. 6ct Alexandrite (Emerald, Light Green , 11.91 x 8.82)
- 6ct Tanzanite (Emerald, Blue, 12.37 x 9.16) vs. 10ct Tanzanite (Emerald, Blue, 14.67 x 10.87)
- 2ct Tanzanite (Emerald, Blue, 8.57 x 6.35) vs. 3ct Tanzanite (Emerald, Blue, 9.81 x 7.27)
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