Loose Sillimanite Cat's Eye for Sale - In Stock, ready to Ship

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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Sillimanite Cat's Eye

Gemstones A-Z

1.07 ct Oval Sillimanite Cat's Eye, 6.9 x 4.7 mm From Madagascar

1.57 ct Round Sillimanite Cat's Eye, 6.9 mm From Madagascar

1.72 ct Oval Sillimanite Cat's Eye, 7.6 x 5.8 mm From Madagascar

1.21 ct Oval Sillimanite Cat's Eye, 7.2 x 4.8 mm From Madagascar

0.9 ct Oval Sillimanite Cat's Eye, 5.4 x 5.2 mm From Madagascar

1.42 ct Oval Sillimanite Cat's Eye, 8 x 5 mm From Madagascar

1.72 ct Oval Sillimanite Cat's Eye, 6.8 x 4.5 mm From Madagascar

1.9 ct Oval Sillimanite Cat's Eye, 7.5 x 5 mm From Madagascar

1.43 ct Oval Sillimanite Cat's Eye, 7.8 x 5.5 mm From Madagascar

1.43 ct Oval Sillimanite Cat's Eye, 7.1 x 5 mm From Madagascar

0.75 ct Oval Sillimanite Cat's Eye, 5.9 x 5.4 mm From Madagascar

1.42 ct Oval Sillimanite Cat's Eye, 7.9 x 5.7 mm From Madagascar

1.13 ct Oval Sillimanite Cat's Eye, 7.8 x 5.3 mm From Madagascar

1.01 ct Oval Sillimanite Cat's Eye, 6.4 x 6.2 mm From Madagascar

1.08 ct Oval Sillimanite Cat's Eye, 6.7 x 4.7 mm From Madagascar

1.21 ct Oval Sillimanite Cat's Eye, 7.8 x 5.5 mm From Madagascar

1.87 ct Round Sillimanite Cat's Eye, 6.8 mm From Madagascar

1.19 ct Oval Sillimanite Cat's Eye, 6.9 x 4.7 mm From Madagascar

1.44 ct Oval Sillimanite Cat's Eye, 7.6 x 5.1 mm From Madagascar

1.23 ct Oval Sillimanite Cat's Eye, 7.5 x 4.9 mm From Madagascar

1.23 ct Oval Sillimanite Cat's Eye, 6.7 x 6.2 mm From Madagascar

1.44 ct Round Sillimanite Cat's Eye, 6.3 mm From Madagascar

2.43 ct Oval Sillimanite Cat's Eye, 7.1 x 5 mm From Madagascar

2.53 ct Oval Sillimanite Cat's Eye, 7.1 x 4.6 mm From Madagascar

0.82 ct Oval Sillimanite Cat's Eye, 6.6 x 4.5 mm From Madagascar

1.75 ct Oval Sillimanite Cat's Eye, 8.4 x 5.2 mm From Madagascar

1.7 ct Oval Sillimanite Cat's Eye, 7.8 x 5.2 mm From Madagascar

1.34 ct Oval Sillimanite Cat's Eye, 7.4 x 5.4 mm From Madagascar

2.2 ct Oval Sillimanite Cat's Eye, 7 x 4.9 mm From Madagascar

2.49 ct Oval Sillimanite Cat's Eye, 7.2 x 5.1 mm From Madagascar

1.3 ct Oval Sillimanite Cat's Eye, 7.2 x 5.1 mm From Madagascar

2.1 ct Oval Sillimanite Cat's Eye, 6.8 x 4.9 mm From Madagascar

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