Cassiterite Value & Market Price
A market-wide average across qualities and sizes. Your stone's value depends on carat, color, clarity, cut, treatment, and origin.
What is moving cassiterite prices
- Metal Prices: weighing on prices
About cassiterite
Cassiterite is tin dioxide (SnO2), the chief ore of tin, and can form high-luster crystals suitable for cutting. Gem-quality cassiterite is typically brown, yellow, black or colorless, with very high refractive index and dispersion, giving it strong brilliance and fire when well cut. It has Mohs hardness around 6–7 but is brittle.
What is your cassiterite worth?
Market averages will not price your stone. GemstoneAI identifies gems and jewelry from a photo, checks authenticity and treatment signals, and gives you a real market valuation in seconds. Free to try.
How much is cassiterite worth?
The GemstoneAI market index for cassiterite is $191 per carat as of 2026-08-04. That is a market-wide average across qualities, not a quote for a specific stone. Individual value depends on carat, color, clarity, cut, treatment, and origin.
How can I tell if my cassiterite is real?
Visual tests alone are unreliable. GemstoneAI analyzes a photo of your stone for identity, treatment indicators, and authenticity signals, then estimates market value. It is free to try.
Is cassiterite a good investment?
Over the past 30 days the cassiterite index moved +0.4%. Gem prices move on supply, demand, and metal markets; treat any single stone as a collectible first and an asset second.