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2. Allison and Roberto Mignone Halls of Gems and Minerals

   en.wikipedia.org/wiki/Allison_and_Roberto_Mignon...

   The Allison and Roberto Mignone Halls of Gems and Minerals are a series of exhibition halls at the American Museum of Natural History on the Upper West Side in Manhattan, New York City. The halls opened on June 12, 2021, as a complete redesign of their predecessors, the Harry Frank Guggenheim Hall of Gems and Minerals and Morgan Memorial Hall ...

3. Kimberly McDonald - Wikipedia

   en.wikipedia.org/wiki/Kimberly_McDonald

   Kimberly McDonald is an American jeweler based in New York City, [1] known for designs that feature geodes, agates, opals and diamonds. Her jewelry is sold by Bergdorf Goodman , [ 2 ] Browns of London, [ 3 ] and the Kimberly McDonald boutique in Atlanta, Georgia.

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

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

   In 1986, California named benitoite as its state gemstone, a form of the mineral barium titanium silicate that is unique to the Golden State and only found in gem quality in San Benito County. [ 80 ] ^ Colorado is the only state whose geological symbols reflect the national flag's colors: red (rhodochrosite), white (yule marble), and blue ...

5. New York Mineralogical Club - Wikipedia

   en.wikipedia.org/wiki/New_York_Mineralogical_Club

   The New York Mineralogical Club, Inc. is the oldest continually-operating mineral club in the United States. [1] The club was founded by George Frederick Kunz , Benjamin B. Chamberlin and Professor Daniel S. Martin, on September 21, 1886, in the home of Professor Daniel S. Martin at 236 West 4th Street, New York City.

6. Geode - Wikipedia

   en.wikipedia.org/wiki/Geode

   Geodes are hollow, vaguely spherical rocks, in which masses of mineral matter (which may include crystals) are secluded. The crystals are formed by the filling of vesicles in volcanic and subvolcanic rocks by minerals deposited from hydrothermal fluids ; or by the dissolution of syn-genetic concretions and partial filling by the same or other ...

7. Gore Mountain Garnet - Wikipedia

   en.wikipedia.org/wiki/Gore_Mountain_Garnet

   Gore Mountain Garnet, found in the Adirondack Mountains in New York, contains the world's largest garnets. [1] [2] The rock that holds these garnets, garnet amphibolite, is sometimes referred to as 'black ore' or 'dark ore.' [1] [3] This rock formation formed during metamorphism during the Ottawan phase of the Grenvillian orogeny, and extremely high temperatures combined with introduction of ...