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Buy Cat's Eye Sillimanite Gems

(324)
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Very Light Grey Sillimanite Cat's Eye Gem - 1.5ct Oval Cabochon (ID: 474183)

Oval Gray Sillimanite Cat's Eye

1.5ct
7.9 x 5.8 mm
$ 4.44
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Warm White Sillimanite Cat's Eye Gem - 2.5ct Oval Cabochon (ID: 410580)

Oval White Sillimanite Cat's Eye

2.5ct
7.9 x 7.1 mm
$ 17.57
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4 pcs
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Very Light Grey Sillimanite Cat's Eye Gem - 0.9ct Oval Cabochon (ID: 540983)

1 pc (avg. 0.89 ct) Gray Sillimanite Cat's Eye

6.5 x 4.3 mm
$ 2.50
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Very Light Grey Sillimanite Cat's Eye Gem - 1.3ct Oval Cabochon (ID: 551052)

Oval Gray Sillimanite Cat's Eye

1.3ct
7.2 x 5.1 mm
$ 3.71
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Very Light Grey Sillimanite Cat's Eye Gem - 2ct Oval Cabochon (ID: 473991)

Oval Gray Sillimanite Cat's Eye

2ct
8.5 x 6.1 mm
$ 5.88
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2 pcs
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Warm White Sillimanite Cat's Eye Gem - 1ct Oval Cabochon (ID: 499379)

Oval White Sillimanite Cat's Eye

0.95 ct (total 1.90ctw)
7.5 x 5 mm
$ 5.70
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2 pcs
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Very Light Grey Sillimanite Cat's Eye Gem - 1.4ct Oval Cabochon (ID: 558486)

Oval Gray Sillimanite Cat's Eye

1.38 ct (total 2.75ctw)
7.5 x 5.3 mm
$ 7.92
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Very Light Grey Sillimanite Cat's Eye Gem - 1.2ct Oval Cabochon (ID: 551367)

Oval Gray Sillimanite Cat's Eye

1.2ct
6.7 x 6.2 mm
$ 3.51
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2 pcs
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White Sillimanite Cat's Eye Gem - 1ct Oval Cabochon (ID: 499419)

Oval White Sillimanite Cat's Eye

1.00 ct (total 2.00ctw)
7.3 x 5 mm
$ 6.00
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Very Light Grey Sillimanite Cat's Eye Gem - 1.4ct Oval Cabochon (ID: 558903)

Oval Gray Sillimanite Cat's Eye

1.4ct
7.9 x 4.6 mm
$ 3.89
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Translucent White Sillimanite Cat's Eye Gem - 1.1ct Oval Cabochon (ID: 551616)

Oval White Sillimanite Cat's Eye

1.1ct
6.7 x 4.7 mm
$ 3.22
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Very Light Grey Sillimanite Cat's Eye Gem - 1.5ct Oval Cabochon (ID: 559495)

Oval Gray Sillimanite Cat's Eye

1.5ct
6.9 x 5.7 mm
$ 4.29
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2 pcs
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Clear White Sillimanite Cat's Eye Gem - 1.2ct Oval Cabochon (ID: 409990)

Oval White Sillimanite Cat's Eye

1.16 ct (total 2.31ctw)
8 x 5.5 mm
$ 8.36
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2 pcs
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White Sillimanite Cat's Eye Gem - 0.7ct Oval Cabochon (ID: 474171)

Oval White Sillimanite Cat's Eye

0.69 ct (total 1.37ctw)
6.3 x 3.8 mm
$ 4.11
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2 pcs
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Clear White Sillimanite Cat's Eye Gem - 1ct Oval Cabochon (ID: 410302)

Oval White Sillimanite Cat's Eye

0.98 ct (total 1.95ctw)
6.7 x 4.2 mm
$ 7.06
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Very Light Grey Sillimanite Cat's Eye Gem - 1.3ct Oval Cabochon (ID: 559490)

Oval Gray Sillimanite Cat's Eye

1.3ct
7.8 x 5.9 mm
$ 3.80
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Light Yellow Sillimanite Cat's Eye Gem - 1.7ct Oval Cabochon (ID: 499434)

Oval Yellow Sillimanite Cat's Eye

1.7ct
7.3 x 5.3 mm
$ 5.13
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Translucent White Sillimanite Cat's Eye Gem - 1.2ct Round Cabochon (ID: 551462)

Round White Sillimanite Cat's Eye

1.2ct
6.2 mm
$ 3.48
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2 pcs
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Very Light Grey Sillimanite Cat's Eye Gem - 0.9ct Oval Cabochon (ID: 558537)

Oval Gray Sillimanite Cat's Eye

0.89 ct (total 1.78ctw)
6.3 x 4.7 mm
$ 5.13
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2 pcs
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Very Light Grey Sillimanite Cat's Eye Gem - 0.6ct Oval Cabochon (ID: 559174)

Oval Gray Sillimanite Cat's Eye

0.64 ct (total 1.28ctw)
6.1 x 3.8 mm
$ 3.69
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Translucent White Sillimanite Cat's Eye Gem - 1.3ct Oval Cabochon (ID: 551609)

Oval White Sillimanite Cat's Eye

1.3ct
7.6 x 5 mm
$ 3.62
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About 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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