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

2.37 ct Oval Sillimanite Cat's Eye, 8.2 x 5.3 mm From Madagascar

1.14 ct Oval Sillimanite Cat's Eye, 7.6 x 5.2 mm From Madagascar

0.76 ct Oval Sillimanite Cat's Eye, 6.9 x 4.3 mm From Madagascar

1.29 ct Oval Sillimanite Cat's Eye, 7.4 x 5 mm From Madagascar

1.8 ct Oval Sillimanite Cat's Eye, 7.2 x 5.4 mm From Madagascar

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

2.47 ct Oval Sillimanite Cat's Eye, 7.3 x 4.7 mm From Madagascar

0.97 ct Oval Sillimanite Cat's Eye, 6.6 x 4.8 mm From Madagascar

1.4 ct Oval Sillimanite Cat's Eye, 7.6 x 5 mm From Madagascar

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

1.43 ct Oval Sillimanite Cat's Eye, 6.6 x 3.8 mm From Madagascar

1.55 ct Oval Sillimanite Cat's Eye, 7.3 x 5.1 mm From Madagascar

1.11 ct Oval Sillimanite Cat's Eye, 6.9 x 4.8 mm From Madagascar

1.14 ct Oval Sillimanite Cat's Eye, 7 x 4.5 mm From Madagascar

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

2.57 ct Oval Sillimanite Cat's Eye, 7.9 x 5.6 mm From Madagascar

1.06 ct Oval Sillimanite Cat's Eye, 6.7 x 4.6 mm From Madagascar

2.07 ct Oval Sillimanite Cat's Eye, 7.4 x 5 mm From Madagascar

2.87 ct Oval Sillimanite Cat's Eye, 8.7 x 6.4 mm From Madagascar

1.25 ct Oval Sillimanite Cat's Eye, 7.6 x 5.2 mm From Madagascar

0.98 ct Oval Sillimanite Cat's Eye, 7.1 x 4.9 mm From Madagascar

1.24 ct Oval Sillimanite Cat's Eye, 7.8 x 5.4 mm From Madagascar

2.06 ct Oval Sillimanite Cat's Eye, 7.3 x 5 mm From Madagascar

0.93 ct Oval Sillimanite Cat's Eye, 5.8 x 5.7 mm From Madagascar

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

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

2.68 ct Oval Sillimanite Cat's Eye, 6.5 x 6.2 mm From Madagascar

1.53 ct Oval Sillimanite Cat's Eye, 7.7 x 5.1 mm From Madagascar

2.06 ct Oval Sillimanite Cat's Eye, 6.8 x 4.8 mm From Madagascar

1.47 ct Oval Sillimanite Cat's Eye, 7.4 x 5.1 mm From Madagascar

1.16 ct Oval Sillimanite Cat's Eye, 6.4 x 5.8 mm From Madagascar

1.48 ct Oval Sillimanite Cat's Eye, 7.7 x 5.3 mm From Madagascar

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