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vivianite

Syllabification: viv·i·an·ite
Pronunciation: /ˈvivēəˌnīt
 
/

Definition of vivianite in English:

noun

A mineral consisting of a phosphate of iron that occurs as a secondary mineral in ore deposits. It is colorless when fresh but becomes blue or green with oxidization.
Example sentences
  • This polished section of a tooth crown reveals figure-eight patterns of the blue mineral vivianite, a phosphate of iron.
  • Occurrences of gypsum crystals and vivianite in drift are also noteworthy.
  • Crystals and fine-grained masses of vivianite are present.

Origin

early 19th century: named after John H. Vivian (1785–1855), British mineralogist, + -ite1.

Definition of vivianite in:

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