geyserite
noun
gey·ser·ite
ˈgī-zə-ˌrīt 
British ˈgā-sə-
: a variety of opal that is deposited around some hot springs and geysers in white or grayish concretions
Examples of geyserite in a Sentence
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In a breakthrough, Djokic and her team found evidence of a rock called geyserite at the Dresser Formation, according to their study published this week in the journal Nature Communications.
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Ben Panko, Smithsonian, 11 May 2017
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Ben Panko, Smithsonian, 11 May 2017
Cite this Entry
“Geyserite.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/geyserite. Accessed 31 Oct. 2025.
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