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

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

   ^ 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. ^ Since 1983, Massachusetts has had 3 other official state rocks: State Historical Rock (Plymouth Rock), State Explorer Rock (Dighton Rock), and State Building and Monument Stone . In 2008 ...

3. National Register of Historic Places listings in Connecticut

   en.wikipedia.org/wiki/National_Register_of...

   There are more than 1,500 listed sites in Connecticut. All 8 counties in Connecticut have listings on the National Register. Fourteen of the sites are among historic sites along the route of French general Rochambeau's army in 1781 and 1782 . This National Park Service list is complete through NPS recent listings posted June 28, 2024.

4. List of defunct department stores of the United States

   en.wikipedia.org/wiki/List_of_defunct_department...

   The following is a list of the affected stores, including some local and regional stores that earlier had been absorbed into chains that became part of Federated, May, or Macy's. Abraham & Straus ( Macy's in 1995) D. M. Read (Macy's in 1990) Bamberger's (Macy's in 1986) The Bon Marché (Macy's in 2005)

5. Gemological Institute of America - Wikipedia

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

   Website. www .gia .edu. 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 ...

6. Emerald - Wikipedia

   en.wikipedia.org/wiki/Emerald

   Emerald is a gemstone and a variety of the mineral beryl (Be 3 Al 2 (SiO 3) 6) colored green by trace amounts of chromium or sometimes vanadium. [2] Beryl has a hardness of 7.5–8 on the Mohs scale. [2] Most emeralds have many inclusions, [3] so their toughness (resistance to breakage) is classified as generally poor.

7. Gemstone - Wikipedia

   en.wikipedia.org/wiki/Gemstone

   Gemstone. Group of precious and semiprecious stones—both uncut and faceted—including ( clockwise from top left) diamond, uncut synthetic sapphire, ruby, uncut emerald, and amethyst crystal cluster. A gemstone (also called a fine gem, jewel, precious stone, semiprecious stone, or simply gem) is a piece of mineral crystal which, when cut or ...