tinstone

[tin-stohn]

noun Mineralogy.

cassiterite.

Origin of tinstone

First recorded in 1595–1605; tin + stone

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for tinstone

Historical Examples of tinstone

These oxides are commonly met with in samples of wolfram and tinstone, especially niobic.
A Textbook of Assaying: For the Use of Those Connected with Mines.
Cornelius Beringer and John Jacob Beringer
Tin is found in nature chiefly as the oxide (SnO2), called cassiterite or tinstone.
An Elementary Study of Chemistry
William McPherson

British Dictionary definitions for tinstone

tinstone

noun

another name for cassiterite

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012