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Wiktionary
abhurite

n. (context mineral English) A soft mineral composed of tin, oxygen, hydrogen, and chlorine.

Wikipedia
Abhurite

Abhurite is a mineral of tin, oxygen, hydrogen, and chlorine with the formula Sn O(O H) Cl. Its named after its type locality a shipwreck with tin ingots at Sharm Abhur, a cove near Jiddah, Red Sea. Its Mohs scale rating is 2.