Loose Sillimanite Gemstones for Sale - In Stock and ready to Ship

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.

Sillimanite gems may show a cat's eye and be cut en cabochon, or they may be faceted, transparent gemstones. The colors of sillimanite include colorless, grayish-white, green, bluish and brownish. A fibrous variety of sillimanite is traded as "fibrolite". Some sillimanite gemstones show pleochroism, which means that several colors may be exhibited in a single gemstone depending on the viewing angle.

Gemstone Information

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I ordered tsavorite garnet. It wasn’t quite as vidid color as I was expecting. Still a nice stone

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Excellent prices, excellent gemstones, easy to navigating, at the checkout, only a part of my cart was paid, then I get back to my chart, and the missing gemstones were there, so I pay it.At the end of the day, I did 2 consecutive purchases, paying 2 shippings. But even with that issue, I’m sure that worth it.Thanks!

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Selected Gemstones

Gemstones A-Z

Buy Sillimanite Gems

1.37 ct Yellow Sillimanite, 7.7 x 5.8 mm Oval Cut From Sri Lanka

1.61 ct Yellow Sillimanite, 8.1 x 6.1 mm Oval Cut From Sri Lanka

2.46 ct Yellow Sillimanite, 10 x 7.9 mm Oval Cut From Sri Lanka

5.52 ct Yellow Sillimanite, 7.1 x 5.1 mm Oval Cut From Sri Lanka

3.65 ct Yellow Sillimanite, 9 x 7.1 mm Oval Cut From Sri Lanka

3.46 ct Yellow Sillimanite, 9 x 7 mm Oval Cut From Sri Lanka

1.13 ct Yellow Sillimanite, 7.8 x 5.9 mm Oval Cut From Sri Lanka

3.06 ct Yellow Sillimanite, 8 x 6.1 mm Oval Cut From Sri Lanka

3.97 ct Yellow Sillimanite, 8.8 x 7 mm Oval Cut From Sri Lanka

3.33 ct Yellow Sillimanite, 8 x 6.1 mm Oval Cut From Sri Lanka

3.15 ct Yellow Sillimanite, 8.9 x 6.7 mm Oval Cut From Sri Lanka

4.74 ct Yellow Sillimanite, 9.1 x 7.1 mm Oval Cut From Sri Lanka

4.32 ct Yellow Sillimanite, 9.1 x 7.2 mm Oval Cut From Sri Lanka

4.02 ct Yellow Sillimanite, 9.6 x 7.6 mm Oval Cut From Sri Lanka

2.09 ct Yellow Sillimanite, 8.5 x 6.7 mm Oval Cut From Sri Lanka

2.78 ct Yellow Sillimanite, 7.1 x 4.9 mm Oval Cut From Sri Lanka

1.13 ct Yellow Sillimanite, 7.9 x 5.9 mm Oval Cut From Sri Lanka

3.39 ct Yellow Sillimanite, 8.8 x 6.7 mm Oval Cut From Sri Lanka

4.08 ct Yellow Sillimanite, 8.8 x 7.1 mm Oval Cut From Sri Lanka

1.24 ct Yellow Sillimanite, 7.8 x 6 mm Oval Cut From Sri Lanka

1.99 ct Yellow Sillimanite, 9.8 x 6 mm Cushion Cut From Sri Lanka

2.54 ct Yellow Sillimanite, 7.8 x 5.7 mm Oval Cut From Sri Lanka

4.86 ct Yellow Sillimanite, 9.7 x 7.7 mm Oval Cut From Sri Lanka

2.63 ct Yellow Sillimanite, 5.7 x 4.1 mm Oval Cut From Sri Lanka

3.32 ct Yellow Sillimanite, 8.9 x 7.1 mm Oval Cut From Sri Lanka

1.55 ct Yellow Sillimanite, 8.1 x 6.2 mm Oval Cut From Sri Lanka

2.07 ct Yellow Sillimanite, 8 x 5.9 mm Oval Cut From Sri Lanka

2.61 ct Yellow Sillimanite, 8 x 6 mm Oval Cut From Sri Lanka

4.04 ct Yellow Sillimanite, 6.1 x 4.2 mm Oval Cut From Sri Lanka

2.08 ct Yellow Sillimanite, 8.6 x 6.8 mm Oval Cut From Sri Lanka

3.81 ct Yellow Sillimanite, 9 x 6.9 mm Oval Cut From Sri Lanka

2.9 ct Yellow Sillimanite, 6.9 x 4.8 mm Oval Cut From Sri Lanka

Sillimanite

Gemstone Information