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2. Moissanite - Wikipedia

   en.wikipedia.org/wiki/Moissanite

   Then, in 1958, moissanite was found in the upper mantle Green River Formation in Wyoming and, the following year, as inclusions in the ultramafic rock kimberlite from a diamond mine in Yakutia in the Russian Far East. [10] Yet the existence of moissanite in nature was questioned as late as 1986 by the American geologist Charles Milton. [11]

3. Marcasite - Wikipedia

   en.wikipedia.org/wiki/Marcasite

   As a primary mineral marcasite forms nodules, concretions, and crystals in a variety of sedimentary rock, such as in the chalk layers found on both sides of the English Channel at Dover, Kent, England, and at Cap Blanc-Nez, Pas de Calais, France, where it forms as sharp individual crystals and crystal groups, and nodules (similar to those shown ...

4. List of gemstones by species - Wikipedia

   en.wikipedia.org/wiki/List_of_gemstones_by_species

   Gadolinite; Gahnite; Gahnospinel; Garnet group: Pyralspite. Almandine; Pyrope; Spessartine; Ugrandite. Andradite. Demantoid; Melanite; Topazolite; Grossular ...

5. Silicon carbide - Wikipedia

   en.wikipedia.org/wiki/Silicon_carbide

   As a gemstone used in jewelry, silicon carbide is called "synthetic moissanite" or just "moissanite" after the mineral name. Moissanite is similar to diamond in several important respects: it is transparent and hard (9–9.5 on the Mohs scale, compared to 10 for diamond), with a refractive index between 2.65 and 2.69 (compared to 2.42 for diamond).

6. List of meteorite minerals - Wikipedia

   en.wikipedia.org/wiki/List_of_meteorite_minerals

   [citation needed] This is a list of those minerals, excluding minerals also commonly found in terrestrial rocks. As of 1997 there were approximately 295 mineral species which have been identified in meteorites. [1]

7. “AITAH For Telling My Fiancé I Don’t Want My Temu Engagement ...

   www.aol.com/aitah-telling-fianc-don-t-062450758.html

   Moissanite, another lab-created gem that sparkles brilliantly, is also a good option when you can’t spend big bucks. Ultimately, the goal is to find a ring that symbolizes your love and commitment.