IPA: /ˈpaɪpˌstoʊn/
KK: /ˈpaɪpˌstoʊn/
A type of hard, compact clay stone that is often red or pink, used by Native American peoples to create tobacco pipes and other carved items.
The artisan skillfully carved the pipestone into a beautiful tobacco pipe.
Pipestone → The word is formed from "pipe" (from Old English *pipian*, meaning to make a sound like a pipe) and "stone" (from Old English *stan*, meaning a solid mineral matter). Pipestone refers to a type of stone that can be carved into pipes, traditionally used by Native Americans for ceremonial smoking.
Think of 'pipe' as something that makes a sound and 'stone' as a solid material. This helps you remember that pipestone is a stone used to make pipes.