Rockwool
trademark
Rock·wool
ˈräk-ˌwu̇l 
—used for mineral wool made by blowing a jet of steam through molten rock (such as limestone or siliceous rock) or through slag and used chiefly for heat and sound insulation
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“Rockwool.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/Rockwool. Accessed 5 Nov. 2024.
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