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The presence of intrusive magma in an area (known as contact metamorphism), or of tectonic plate interactions on a larger scale (known as regional metamorphism) puts the igneous and sedimentary rocks and minerals under heat or pressure which may cause changes in their chemistry and crystal structure. The result is the creation of metamorphic rocks. Gemstones associated with metamorphic rock include the beryls, jade, lapis lazuli, turquoise, spinel, ruby, sapphire and zircon.

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14y ago
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Viviksha Vadera

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3y ago

sedimentary

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Viviksha Vadera

Lvl 2
3y ago

sedimentary

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Q: Is a sapphire a igneous metamorphic or sedimentary?
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