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ID: 4105691 pcs
4.00ct Sillimanite Cat's Eye
10.38mm x 7.31mm x 6.10mm
USD 28.00
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ID: 4103684 pcs
4.08ctw Sillimanite Cat's Eye
7.08mm x 4.83mm x 3.46mm
USD 14.77
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ID: 4101732 pcs
2.29ctw Sillimanite Cat's Eye
7.14mm x 4.67mm x 3.72mm
USD 8.29
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ID: 4102992 pcs
2.77ctw Sillimanite Cat's Eye
7.40mm x 5.33mm x 4.08mm
USD 10.03
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ID: 4103402 pcs
3.18ctw Sillimanite Cat's Eye
8.09mm x 5.48mm x 4.13mm
USD 11.51
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ID: 4099902 pcs
2.31ctw Sillimanite Cat's Eye
8.04mm x 5.49mm x 3.05mm
USD 8.36
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ID: 4100672 pcs
2.53ctw Sillimanite Cat's Eye
7.23mm x 5.20mm x 4.04mm
USD 9.16
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ID: 4101802 pcs
3.05ctw Sillimanite Cat's Eye
7.87mm x 5.90mm x 3.87mm
USD 11.04
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ID: 4107201 pcs
2.96ct Sillimanite Cat's Eye
9.26mm x 6.56mm x 5.40mm
USD 20.72
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ID: 4100682 pcs
2.53ctw Sillimanite Cat's Eye
7.20mm x 5.19mm x 3.93mm
USD 9.16
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ID: 4103694 pcs
3.82ctw Sillimanite Cat's Eye
7.29mm x 5.16mm x 2.92mm
USD 13.83
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ID: 4106011 pcs
6.66ct Sillimanite Cat's Eye
11.84mm x 8.77mm x 7.24mm
USD 46.62
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ID: 4098924 pcs
3.24ctw Sillimanite Cat's Eye
6.59mm x 4.08mm x 3.45mm
USD 11.73
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ID: 4100732 pcs
2.53ctw Sillimanite Cat's Eye
8.32mm x 5.52mm x 3.18mm
USD 9.16
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ID: 4104274 pcs
4.54ctw Sillimanite Cat's Eye
6.40mm x 3.27mm
USD 16.43
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ID: 4102952 pcs
2.52ctw Sillimanite Cat's Eye
7.43mm x 5.17mm x 3.89mm
USD 9.12
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ID: 4105721 pcs
3.68ct Sillimanite Cat's Eye
10.27mm x 7.60mm x 5.88mm
USD 25.76
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ID: 4106341 pcs
3.57ct Sillimanite Cat's Eye
9.41mm x 8.54mm x 4.75mm
USD 24.99
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ID: 4103022 pcs
1.95ctw Sillimanite Cat's Eye
6.71mm x 4.22mm x 3.78mm
USD 7.06
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ID: 4104091 pcs
2.86ct Sillimanite Cat's Eye
9.07mm x 6.30mm x 5.63mm
USD 10.35
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ID: 4100752 pcs
2.62ctw Sillimanite Cat's Eye
7.51mm x 5.19mm x 3.81mm
USD 9.48
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Sillimanite Cat's Eye
Sillimanite is an aluminum silicate, related to both andalusite and kyanite. In fact these three minerals are polymorphs - they share the same chemical composition but different crystal structures.

Sillimanite is named after the American chemist Benjamin Silliman (1779-1864). Silliman was one of the first American professors of science and taught at Yale University.
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Size and Weight

Gems are always measured in Millimeter (mm)

Dimensions are given as;
length x width x depth,
except for round stones which are;
diameter x depth

Select gems by size, not by weight!
Gem varieties vary in density, so carat weight is not a good indication of size

Note: 1ct = 0.2g

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