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manganese spar

American  

noun

  1. Mineralogy.  rhodonite or rhodochrosite.


Etymology

Origin of manganese spar

First recorded in 1815–25

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 carbonate forms the mineral known as manganese spar.

From Project Gutenberg