strontianite
noun
stron·tian·ite ˈsträn(t)-shə-ˌnīt 
: a mineral consisting of a carbonate of strontium and occurring in various forms and colors
Example Sentences
Recent Examples on the Web Only two minerals, however - celestite and strontianite - contain strontium in sufficient quantities for commercial use, and these minerals are found predominantly in sedimentary rocks. 
David Bressan, Forbes, 4 July 2021
David Bressan, Forbes, 4 July 2021 Word History
First Known Use
1794, in the meaning defined above
- friendliness
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- friendly
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- imped