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

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

   List of U.S. state minerals, rocks, stones and gemstones Leaders of states in the U.S. which have significant mineral deposits often create a state mineral, rock, stone or gemstone to promote interest in their natural resources, history, tourism, etc. Not every state has an official state mineral, rock, stone and/or gemstone, however.

3. Ada, Oklahoma - Wikipedia

   en.wikipedia.org/wiki/Ada,_Oklahoma

   Ada is a city in and the county seat of Pontotoc County, Oklahoma, United States. [4] The population was 16,481 at the 2020 United States Census. The city was named for Ada Reed, the daughter of an early settler, and was incorporated in 1901. [5] Ada is home to East Central University, and is the capital of the Chickasaw Nation.

4. Gemological Institute of America - Wikipedia

   en.wikipedia.org/wiki/Gemological_Institute_of...

   The Gemological Institute of America ( GIA) is a nonprofit institute based in Carlsbad, California. It is dedicated to research and education in the field of gemology and the jewelry arts. [1] Founded in 1931, GIA's mission is to protect buyers and sellers of gemstones by setting and maintaining the standards used to evaluate gemstone quality. The institute does so through research, gem ...

5. BC Clark Jewelers - Wikipedia

   en.wikipedia.org/wiki/BC_Clark_Jewelers

   BC Clark Jewelers is a full-service jeweler that currently operates three stores in Oklahoma City, Oklahoma. The company, founded in Purcell, Indian Territory in 1892, claims to be "Oklahoma's oldest jeweler." [1]

6. Category : Wikipedians interested in gems and jewelry

   en.wikipedia.org/wiki/Category:Wikipedians...

   Pages in category "Wikipedians interested in gems and jewelry" The following 18 pages are in this category, out of 18 total. This list may not reflect recent changes .

7. List of gemstones by species - Wikipedia

   en.wikipedia.org/wiki/List_of_gemstones_by_species

   Chatoyant gems Some minerals made into gemstones may display a chatoyancy or cat's eye effect, these include: [1] Actinolite Andalusite Apatite Beryl Aquamarine Emerald Heliodor Morganite Beryllium Beryllonite Calcite Cerussite Chrysoberyl Danburite Diaspore Diopside Enstatite Garnet Grandidierite Hawk's eye Hypersthene Iolite Kornerupine ...