- a brown or black mineral, tin dioxide, SnO2, that crystallizes in the tetragonal system; tinstone: the principal ore of tin.
Origin of cassiterite
1855–60; < Greek kassíter(os) tin + -ite1
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for cassiterite
Cassiterite, the principal tin ore, would have to be roasted.The A B C of Mining
Charles A. Bramble
Our new ledge is a jim-dandy; and seem' as I cheated the woman out of her cassiterite, I'm bound to make it good in yellow gold.The Trail of a Sourdough
May Kellogg Sullivan
The original home of cassiterite is in veins closely related to granitic rocks.
Cassiterite is practically insoluble and is very resistant to decomposition by weathering.
Stannite probably alters to "wood tin," a fibrous variety of cassiterite.
- a black or brown mineral, found in igneous rocks and hydrothermal veins. It is a source of tin. Composition: tin oxide. Formula: SnO 2 . Crystal structure: tetragonalAlso called: tinstone
C19: from Greek kassiteros tin
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