Bob da Bildr

Bob da Bildr

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Storyboard Text

  • Bob the Builder here to teach you about Olivine
  • Olivine has a chemical formula of (Mg,Fe)2SiO4 and a hardness of 6.5 to 7
  • It is part of the olivine group and has a color of olive green.
  • Both the cleavage and fracture are brittle
  • The streak is white and the luster is vitreous.
  • The specific gravity for olivine is 3.2 to 4.4
  • The transparency is transparent to translucent
  • Important uses for olivine include slag conditioner, removing impurites
  • from steel and refactory metals and brick.
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