hornstone
noun
horn·stone
ˈhȯrn-ˌstōn 
: a mineral that is a variety of quartz much like flint but more brittle
Cite this Entry
“Hornstone.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/hornstone. Accessed 3 Dec. 2025.
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