Sentence Examples


  • The quality of ore in the two ranges differs somewhat, that mined from the Vermilion Range being a hard specular or red haematite, while that taken from the Mesabi Range, largely red haematite, is much softer and in many localities quite finely comminuted.
  • Specular haematite forms a constituent of certain schistose rocks, such as the Brazilian itabirite.
  • The splendent surface has suggested for this mineral such names as specular iron ore, looking-glass ore, and iron glance (fer oligiste of French writers).
  • In the Marquette district of Michigan (Lake Superior) schistose specular ore occurs in important deposits, associated with a jasper rock, in which the ore alternates with bands of red quartzite.
  • Micaceous iron ore consists of delicate steel-grey scales of specular haematite, unctuous to the touch, used as a lubricant and also as a pigment.