Formation – SummaryFormation – Summary

Gem Junior Course

Formation – Summary

By International Gem Society, updated on

Unit 2: Formation – How Gems Are Born

Time to learn the special words that describe how our beautiful gemstones form deep inside the Earth!

  • Pressure – The force of squeezing something very hard.
  • Earth’s Crust – The top layer of the Earth, like the skin on an apple.
  • Outermost – The outside part of something.
  • Earth’s Mantle – The hot layer under the Earth’s crust.
  • Formation – The process of making or shaping.
  • Magma – Hot, melted rock inside the Earth.
  • Crystallize – When minerals turn into pretty crystals.
  • Tectonic plates – Big pieces of the Earth’s crust that move around.
  • Shift – To move or slide.
  • Seep – To slowly leak or flow through small spaces.
  • Fissures – Small cracks in rocks.
  • Evaporate – When water turns into air and disappears.
  • Cavities – Empty spaces or holes in rocks.
  • Molten – Melted and very hot, like lava.
  • Mining – Digging in the ground to find gems or rocks.

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