schorl

NOUN
  1. black tourmaline
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How To Use schorl In A Sentence

  • There are exceptions, such as German manganite, some Bolivian and Chinese cassiterite, Russian ilvaite, Brazilian and Namibian schorl, Panasqueira ferberite, and rutile, especially that from Graves Mountain, Georgia.
  • If the stuff does not answer the magnet, it is probably schorl (tourmaline), hornblende, or dark quartz. To The Gold Coast for Gold, Vol. II A Personal Narrative
  • They contain sulfide minerals as well as metamorphic minerals that include cordierite, gahnite, epidote, garnet, amphiboles, schorl, and many others.
  • I observed neither hornblende, black schorl, nor rutile titanite, in this granite. Travels to the Equinoctial Regions of America
  • Here it was associated with quartz, albite, schorl, muscovite, and microcline in the intermediate zone.
  • He informed us all about internal fires and tertiary formations; about äeriforms, fluidiforms, and solidiforms; about quartz and marl; about schist and schorl; about gypsum and trap; about talc and calc; about blende and horn-blende; about mica-slate and pudding-stone; about cyanite and lepidolite; about hematite and tremolite; about antimony and calcedony; about manganese and whatever you please. Tales.
  • Garnets and schorl are the most likely collectible minerals to be encountered.
  • We are ignorant of the extent of the cavities which subterranean fires and volcanic agitations may have produced in the bowels of the earth in those primitive rocks, which, containing considerable quantities of amphibole, mica, garnet, magnetic iron-stone, and red schorl (titanite), appear to be anterior to granite. Travels to the Equinoctial Regions of America
  • He informed us all about internal fires and tertiary formations; about äeriforms, fluidiforms, and solidiforms; about quartz and marl; about schist and schorl; about gypsum and trap; about talc and calc; about blende and horn-blende; about mica-slate and pudding-stone; about cyanite and lepidolite; about hematite and tremolite; about antimony and calcedony; about manganese and whatever you please. Tales.
  • Brandberg has been producing thousands of gemmy, zoned amethyst crystals, and a new area was found in the Erongo Mountains for schorl, aquamarine, and topaz.
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