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Origin of Gemstones
Origin of Gemstones
In nature, crystals can form when liquid rock, called magma, cools. ๐
If it cools slowly, then crystals may form. ๐ฎ
Many valuable crystals such as diamonds, rubies, and emeralds form this way!
Gem Formation
Gem Formation
Most gems form naturally as minerals within the Earth. ๐
Most form as crystals, solids whose atoms are arranged in highly ordered repeating patterns called crystal systems. โ๏ธ
Learning about the geological processes involved in gem formation will help you understand some of the properties theyโll encounter in gemstones. ๐
Check out the four ways how gemstones can form!
Gemstones are the product of our earth. ๐
Some gemstones, like diamond & zircon, were formed deep in the earth and brought to the surface by explosions of molten rock. ๐
Many, like topaz, tourmaline, and aquamarine, crystallized slowly from hot fluids and gases as they cooled and solidified, far below the surface of the earth. ๐โ๐ฌ
Others formed from liquids filtered into cracks and pockets in rock, like Australian opal. ๐ฆ
Some, like garnet and jade, formed when rocks were heated and pressurized by the earth's movements, and recombined to form new, different minerals! ๐
Sources: (1) Geological origin of gemstones by Australian Museum; (2) Gem Rock Auctions; (3) Geology.com; (4) Gem Formation by Donald Clark, International Gem Society
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