Cassiterite: Buy Loose Cassiterite at Affordable Prices from GemSelect

Cassiterite is a tin oxide mineral, and is the primary ore for tin. In addition to its important industrial use, it has some interesting properties that make high quality crystals valuable as gemstones. Cassiterite is reasonably hard, with a rating on the Mohs scale of 6 to 7. It tends to be opaque though thin crystals can be translucent. Its chief virtue is its multiple crystal faces and outstanding luster. Many specimens are graded as having "adamantine" (diamond-like) or submetallic luster.

Cassiterite is one of the densest gem materials known. It also has a very high refractive index, higher than zircon, sphene and demantoid garnet.

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Overall Rating -> 9

My first purchase went well. I will purchase more gems in the future.

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Overall Rating -> 8

I did not realize how small the stone was. I cannot use it for the project I wanted, but I am keeping the stone and tru to use it in something else.

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Overall Rating -> 10

I love your selection of gems. My only complaing is I wish I could put in a page number to return to that page.When there are over 60 pages of gems it is hard to return to a page with a gem I am considering.

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Overall Rating -> 10

Found the stone I wanted which was delivered quickly and met expectations.

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Overall Rating -> 8

Very easy to find the specific stone I was looking for. I am pleased by both the selection and the price of the stones that are available. The only "bad" thing that I have to say is that the interface of the site is outdated.

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over the experience was similar to other sites i have used. The only real note I have is the checkout experience was tedious and discriminatory, i wouldn't accept visa gift cards, which not only have guaranteed funds but help protect from misuse of personal information, but would not accept my visa b/c it is a prepaid card. I don't have bank account and I have been using the prepaid card for years without issue so this was disappointing to me. I feel safer using reputable gem sites rather than amazon or ebay (I have been sold fake gems with fake certs on both), but not being able to use my own valid legitimate funds and having to find a friend to buy for me b/c I use a non-bank card like 40% of the country is insulting.

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Overall Rating -> 10

I really enjoy browsing through GemSelect. The selection is always marvelous and I love how detailed everything is described. The only thing I noticed is that when browsing through my phone, the videos of the gems do not load. If there were more videos of the gems, that would be amazing, though I understand that is a lot of work on GemSelect's part! Checking out is also very fast and easy, and I love that the return policy is very good, though I hope I don't have to use it anytime soon.

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Overall Rating -> 9

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Overall Rating -> 10

Very excited and impressed with all your products. Keep up the good work....more different stones to choose from. I like Cabachons.

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Overall Rating -> 10

Very large selection of items and we used the stones to have several pieces of jewelry made for us.

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Overall Rating -> 10

My first order. I am anxious to see if what I ordered is what I receive.

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Gemstones A-Z

Buy Cassiterite Gems

1.71 carat White Zircon, Oval loose Zircon from Cambodia, Natural Gems, 6 x 4.1 mm

5.85 carat Cushion Amethyst, loose Certified Amethyst from Brazil, Natural Untreated Gem, 15.2 x 9.1 mm

0.67 ct Loose Violet Sapphire, 5.1 x 3.2 mm Oval Cut From Tanzania

0.17 ct Black Diamond, 3.1 mm Diamond Cut From India

1.15 carat Pear Shape Kornerupine, loose Certified Kornerupine from Sri Lanka, Natural Untreated Gem, 8.6 x 5.8 mm

4.29 ct Oval Spectrolite, 10.1 x 8.2 mm From Finland

10.7 ct Marquise Concave Cut Smoky Quartz, 19.9 x 13.4 mm From Brazil

0.52 carat Green Sapphire, Pear Shape loose Sapphire from Tanzania, Natural Gem, 6.1 x 4 mm

4.23 ct Square Cut Peridot, 6 x 5.9 mm From China

0.45 ct Oval Chrysoberyl Cat's Eye, 3.4 x 3.3 mm From Sri Lanka

3.09 ct Pink Morganite, 11.1 x 8.5 mm Carved From Afghanistan

1.83 carat Pink Tourmaline, Emerald Cut loose Tourmaline from Mozambique, Natural Untreated Gem, 8.8 x 5.6 mm

3.72 carat Pear Shape Pyrope Garnet, loose Certified Pyrope Garnet from Mozambique, Natural Untreated Gems, 7.2 x 5.2 mm

30.88 ct Oval Agate, 23.1 x 21.1 mm From Indonesia

3.92 carat Pear Pietersite, loose Certified Pietersite from Namibia, Natural Untreated Gem, 14.6 x 8.8 mm

36.7 ct Drilled Sphere Rhodochrosite, 15.3 mm From South Africa

27.53 ct Drilled Sphere Rutile Quartz, 12.7 mm From India

3.87 ct Yellow Cat's Eye Apatite, 10 x 7.8 mm Oval Cut From Kenya

1 carat Pear Shape Color-Change Diaspore, loose Certified Color-Change Diaspore from Turkey, Natural Untreated Gem, 10.9 x 4.2 mm

2.92 carat Yellow Citrine, Baguette Cut loose Citrine from Brazil, Natural Untreated Gem, 12.1 x 6.2 mm

0.58 carat London Blue Topaz, Oval loose Topaz from Brazil, Natural Gem, 6.1 x 4 mm

19.91 ct Square Hematite, 16 x 15.3 mm From Brazil

2 ct Oval Prehnite, 7.7 x 6.8 mm From South Africa

1.32 ct Loose Orange Moonstone, 10 x 5 mm Marquise Cut From India

3.03 carat Blue Tanzanite, Marquise Cut loose Tanzanite from Tanzania, Natural Gem, 13.9 x 6.4 mm

31.43 carat Pear Hematite, loose Certified Hematite from Brazil, Natural Untreated Gem, 25.9 x 16 mm

0.18 carat Round Emerald, loose Certified Emerald from Colombia, Natural Gem, 3.7 mm

4.12 ct Round Pietersite, 12.5 mm From Namibia

0.24 carat Oval Tsavorite Garnet, loose Certified Tsavorite Garnet from Tanzania, Natural Untreated Gem, 5 x 3.1 mm

0.56 ct Loose Orange Sapphire, 4.2 x 4.2 mm Cushion Cut From Tanzania

0.4 ct Green Sphene, 5.3 x 3.9 mm Oval Cut From Sri Lanka

7.74 ct Carved Prehnite, 14.7 x 10.4 mm From South Africa

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