Talc for Science Class

Talc for Science Class

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Storyboard Description

This story line explains what Talc is.

Storyboard Text

  • IT'S... TALC?
  • Hey, look over here, I found something!
  • Whoa, what in the world is this thing?
  • This is Talc! It's the softest mineral on the Mohs Scale! It has a hardnest of 1! Some of the human uses are rubber, paper, paint and roofing! It's in the silicate group and it's chemical composition is Mg3Si4O10(OH)2.
  • Oh wow! That's so fascinating
  • One day, two miners went out to explore a cave that was said to contain expensive minerals.
  • So Dr. Philips, tell me more about the Talc!
  • Well, the colors it can be found as is green, white, gray, brown or colorless. It has a perfect cleavage. Some minerals that are harder than Talc could be Gypsum or Calcite, pretty much any other mineral.
  • Suddenly, they find something hidden in between the rocks!
  • Where exactly can you find Talc? I know they're in caves but where else?
  • Well, you can find them in metamorphic rocks, you can find them in underground caves like where you found yours, and there are deposits of Talc found in Texas.
  • He then explains what is in Talc.
  • Bricks, stones, concrete, and glass are from silicates. Talc can cleave into thin sheets. And also small amounts of Al or Ti can substitute for Si. And this following fact is for Talc only, it is non-metallic and is a pearly mineral. Talc's crystal shape or formation is triclinic. It's not found in your home or daily life
  • So, after they had found their mineral, they brought it back to their office to examine the Talc.
  • More questions were asked like, "Where can Talc be found?"
  • The last and final questions were asked by the miner and of course, the scientist had the answers.
  • And finally what are some characteristics of the silicate group?
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