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You Selected (153): Cat's Eye Sillimanite Clear All
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ID: 4105981 pcs
thumb image of 3.7ct Oval Cabochon Grayish Brown Sillimanite Cat's Eye (ID: 410598)
3.72 ct Sillimanite Cat's Eye
10.1 x 7.4 mm
$ 26.04
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ID: 4105941 pcs
thumb image of 2.2ct Oval Cabochon Grayish Brown Sillimanite Cat's Eye (ID: 410594)
2.23 ct Sillimanite Cat's Eye
9.3 x 5.9 mm
$ 15.61
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ID: 4101974 pcs
thumb image of 4.5ct Oval Cabochon Smoke Sillimanite Cat's Eye (ID: 410197)
4.50 ct Sillimanite Cat's Eye
7.4 x 4.9 mm
$ 16.29
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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: 4104264 pcs
thumb image of 4.5ct Oval Cabochon Smoke Sillimanite Cat's Eye (ID: 410426)
4.49 ct Sillimanite Cat's Eye
7.1 x 4.7 mm
$ 16.25
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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: 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: 4105751 pcs
thumb image of 1.9ct Oval Cabochon Grayish Brown Sillimanite Cat's Eye (ID: 410575)
1.91 ct Sillimanite Cat's Eye
8.9 x 5.8 mm
$ 13.37
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ID: 4098984 pcs
thumb image of 3.6ct Oval Cabochon Smoke Sillimanite Cat's Eye (ID: 409898)
3.64 ct Sillimanite Cat's Eye
6.9 x 4.3 mm
$ 13.18
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ID: 4740181 pcs
thumb image of 1.4ct Oval Cabochon Smoke Sillimanite Cat's Eye (ID: 474018)
1.37 ct Sillimanite Cat's Eye
7.3 x 5.6 mm
$ 4.11
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ID: 4101984 pcs
thumb image of 3.6ct Oval Cabochon Smoke Sillimanite Cat's Eye (ID: 410198)
3.63 ct Sillimanite Cat's Eye
7.1 x 4.4 mm
$ 13.14
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ID: 4741831 pcs
thumb image of 1.5ct Oval Cabochon Smoke Sillimanite Cat's Eye (ID: 474183)
1.48 ct Sillimanite Cat's Eye
7.9 x 5.8 mm
$ 4.44
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ID: 4107161 pcs
thumb image of 2.4ct Oval Cabochon Greenish Brown Sillimanite Cat's Eye (ID: 410716)
2.41 ct Sillimanite Cat's Eye
8.4 x 6.1 mm
$ 16.87
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ID: 4751574 pcs
thumb image of 3.8ct Oval Cabochon Smoke Sillimanite Cat's Eye (ID: 475157)
3.82 ct Sillimanite Cat's Eye
5.7 x 5.1 mm
$ 11.46
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ID: 4751534 pcs
thumb image of 3.7ct Round Cabochon Smoke Sillimanite Cat's Eye (ID: 475153)
3.73 ct Sillimanite Cat's Eye
5.7 mm
$ 11.19
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ID: 4746781 pcs
thumb image of 1.5ct Oval Cabochon Smoke Sillimanite Cat's Eye (ID: 474678)
1.49 ct Sillimanite Cat's Eye
7.7 x 6.2 mm
$ 4.47
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ID: 4105961 pcs
thumb image of 2.9ct Oval Cabochon Grayish Brown Sillimanite Cat's Eye (ID: 410596)
2.87 ct Sillimanite Cat's Eye
8.7 x 6.4 mm
$ 20.09
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ID: 4740141 pcs
thumb image of 1.5ct Oval Cabochon Smoke Sillimanite Cat's Eye (ID: 474014)
1.48 ct Sillimanite Cat's Eye
7.5 x 5.7 mm
$ 4.44
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ID: 4750281 pcs
thumb image of 1.4ct Oval Cabochon Smoke Sillimanite Cat's Eye (ID: 475028)
1.44 ct Sillimanite Cat's Eye
7.5 x 5.6 mm
$ 4.32
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ID: 4740191 pcs
thumb image of 1.5ct Oval Cabochon Smoke Sillimanite Cat's Eye (ID: 474019)
1.53 ct Sillimanite Cat's Eye
7.7 x 5.6 mm
$ 4.59
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ID: 4101762 pcs
thumb image of 2.7ct Oval Cabochon Smoke Sillimanite Cat's Eye (ID: 410176)
2.71 ct Sillimanite Cat's Eye
7.2 x 4.9 mm
$ 9.81
Quantity
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)

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length x width x depth,
except for round stones which are;
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Note: 1ct = 0.2g

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