Definition of kidney ore in English:

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kidney ore

noun

[mass noun]
Haematite occurring in rounded, kidney-shaped masses.
Example sentences
  • It produced a large number of fine specimens of grape ore and kidney ore.
  • Hematite specimens occurring as ‘kidney ore’ were found to some degree in most of the area's mines.
  • Typically the Furness haematite is found in rounded masses, resembling animal kidneys, and so is known as kidney ore.

For editors and proofreaders

Line breaks: kid¦ney ore

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