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epsomite

American  
[ep-suh-mahyt] / ˈɛp səˌmaɪt /

noun

Mineralogy.

  1. the natural form of Epsom salt, Mg 2 SO 4 ⋅7H 2 O, found as a crust in caves and lake deposits.

Etymology

Origin of epsomite

1805–15; named after Epsom; -ite 1

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

The mineral cave decor — epsomite, mirabilite, sulfate — rusts into the ruddy orange of iron oxide, the deep black of manganese.

From Salon • Oct. 7, 2023

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.