4.20 carats natural step cushion cut peridot gemstone

Item Information

Dimensions (mm) 10 x 9 x 6mm
Weight (carats) 4.2 carats
Colors
No Treatment
Peridot (/ˈpɛrɪdɒt/ or /ˈpɛrɪdoʊ/) (sometimes called chrysolite) is gem-quality olivine and a silicate mineral with the formula of (Mg, Fe)2SiO4. As peridot is a magnesium-rich variety of olivine (forsterite), the formula approaches Mg2SiO4. Its green color is dependent on the iron contents within the structure of the gem. Peridot occurs in silica-deficient rocks such a volcanic basalt as well as in pallasitic meteorites. Peridot is one of only two gems observed to be formed not in the Earth’s crust, but in molten rock of the upper mantle. Gem-quality peridot is rare to find on Earth's surface due to its susceptibility to weathering during transportation from deep within the mantle to the surface.
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$200.00 USD

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Pricing & Details

Auction ID 1565833
Watchers 1 watching
Viewed 45 times
Starts 19th Aug 2021 8:54pm PDT

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