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2. 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 ...

3. Tsavorite - Wikipedia

   en.wikipedia.org/wiki/Tsavorite

   Tsavorite or tsavolite is a variety of the garnet group species grossular, a calcium-aluminium garnet with the formula Ca 3 Al 2 Si 3 O 12. [2] Trace amounts of vanadium or chromium provide the green color.

4. Wikipedia : WikiProject Gemology and Jewelry/Gemstones

   en.wikipedia.org/wiki/Wikipedia:WikiProject...

   Adelaide ruby (garnet) Arizona Ruby (garnet) American ruby (garnet) and (quartz) Sapphire. Padparadscha sapphire - dab - Padparadschah sapphire; Hope sapphire; Water sapphire; Natural Sapphire; Yogo sapphire; List of sapphire misnomers. Oriental amethyst a misnomer for corundum. Synthetic Aquamarine a misnomer for synthetic corundum or spinel ...

5. The March Birthstone: Aquamarine Jewelry Pieces That Wow - AOL

   www.aol.com/lifestyle/march-birthstone...

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6. Gemstone - Wikipedia

   en.wikipedia.org/wiki/Gemstone

   The traditional distinction does not necessarily reflect modern values; for example, while garnets are relatively inexpensive, a green garnet called tsavorite can be far more valuable than a mid-quality emerald. [11] Another traditional term for semi-precious gemstones used in art history and archaeology is hardstone. Use of the terms 'precious ...

7. List of U.S. state minerals, rocks, stones and gemstones

   en.wikipedia.org/wiki/List_of_U.S._state...

   ^ Colorado is the only state whose geological symbols reflect the national flag's colors: red (rhodochrosite), white (yule marble), and blue (aquamarine). ^ Florida's state gem, moonstone, was adopted to highlight Florida's role in the United States' Lunar program, which landed the first astronauts on the Moon. [81]