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You Selected (176): Cat's Eye Sillimanite Cat's Eye Sillimanite Clear All
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ID: 4103744 pcs
thumb image of 4.7ct Oval Cabochon Smoke Sillimanite Cat's Eye (ID: 410374)
4.68 ct Sillimanite Cat's Eye
7.5 x 5 mm
$ 16.94
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ID: 4746721 pcs
thumb image of 1.3ct Oval Cabochon Smoke Sillimanite Cat's Eye (ID: 474672)
1.33 ct Sillimanite Cat's Eye
6.7 x 5.7 mm
$ 3.99
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ID: 4106001 pcs
thumb image of 3.9ct Oval Cabochon Grayish Brown Sillimanite Cat's Eye (ID: 410600)
3.92 ct Sillimanite Cat's Eye
10.6 x 7.8 mm
$ 27.44
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ID: 4105951 pcs
thumb image of 2.9ct Oval Cabochon Grayish Brown Sillimanite Cat's Eye (ID: 410595)
2.87 ct Sillimanite Cat's Eye
9.5 x 6.4 mm
$ 20.09
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ID: 4098974 pcs
thumb image of 4.1ct Oval Cabochon Smoke Sillimanite Cat's Eye (ID: 409897)
4.12 ct Sillimanite Cat's Eye
7.1 x 4.8 mm
$ 14.91
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ID: 4746751 pcs
thumb image of 1.3ct Round Cabochon Smoke Sillimanite Cat's Eye (ID: 474675)
1.34 ct Sillimanite Cat's Eye
6.9 mm
$ 4.02
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ID: 4101964 pcs
thumb image of 3.9ct Oval Cabochon Smoke Sillimanite Cat's Eye (ID: 410196)
3.87 ct Sillimanite Cat's Eye
7.1 x 4.6 mm
$ 14.01
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ID: 4718971 pcs
thumb image of 1.3ct Oval Cabochon Grayish Brown Sillimanite Cat's Eye (ID: 471897)
1.33 ct Sillimanite Cat's Eye
7.3 x 6.8 mm
$ 3.99
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ID: 4751544 pcs
thumb image of 4.5ct Round Cabochon Smoke Sillimanite Cat's Eye (ID: 475154)
4.49 ct Sillimanite Cat's Eye
5.7 mm
$ 13.47
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ID: 4741791 pcs
thumb image of 1.4ct Oval Cabochon Smoke Sillimanite Cat's Eye (ID: 474179)
1.37 ct Sillimanite Cat's Eye
7.8 x 4.6 mm
$ 4.11
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ID: 4098994 pcs
thumb image of 3.9ct Oval Cabochon Smoke Sillimanite Cat's Eye (ID: 409899)
3.93 ct Sillimanite Cat's Eye
7.1 x 4.7 mm
$ 14.23
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ID: 4105801 pcs
thumb image of 2.5ct Oval Cabochon Grayish Brown Sillimanite Cat's Eye (ID: 410580)
2.51 ct Sillimanite Cat's Eye
7.9 x 7.1 mm
$ 17.57
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ID: 4750381 pcs
thumb image of 1.4ct Oval Cabochon Smoke Sillimanite Cat's Eye (ID: 475038)
1.39 ct Sillimanite Cat's Eye
7.5 x 5.7 mm
$ 4.17
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ID: 4741712 pcs
thumb image of 1.4ct Oval Cabochon Smoke Sillimanite Cat's Eye (ID: 474171)
1.37 ct Sillimanite Cat's Eye
6.3 x 3.8 mm
$ 4.11
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ID: 4741861 pcs
thumb image of 1.4ct Oval Cabochon Smoke Sillimanite Cat's Eye (ID: 474186)
1.40 ct Sillimanite Cat's Eye
8.3 x 5.4 mm
$ 4.20
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ID: 4103514 pcs
thumb image of 3.4ct Oval Cabochon Smoke Sillimanite Cat's Eye (ID: 410351)
3.37 ct Sillimanite Cat's Eye
6.6 x 4.7 mm
$ 12.20
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ID: 4746771 pcs
thumb image of 1.4ct Round Cabochon Smoke Sillimanite Cat's Eye (ID: 474677)
1.40 ct Sillimanite Cat's Eye
6.9 mm
$ 4.20
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ID: 4098914 pcs
thumb image of 3.3ct Oval Cabochon Smoke Sillimanite Cat's Eye (ID: 409891)
3.29 ct Sillimanite Cat's Eye
6.4 x 4.4 mm
$ 11.91
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ID: 4751594 pcs
thumb image of 4ct Round Cabochon Smoke Sillimanite Cat's Eye (ID: 475159)
3.97 ct Sillimanite Cat's Eye
5.7 mm
$ 11.91
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ID: 4751584 pcs
thumb image of 3.9ct Round Cabochon Smoke Sillimanite Cat's Eye (ID: 475158)
3.89 ct Sillimanite Cat's Eye
5.8 mm
$ 11.67
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ID: 4750371 pcs
thumb image of 1.2ct Oval Cabochon Smoke Sillimanite Cat's Eye (ID: 475037)
1.20 ct Sillimanite Cat's Eye
8 x 6.1 mm
$ 3.60
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Item in Stock
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Cat's Eye Sillimanite
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

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Note: 1ct = 0.2g

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