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2. 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 ...

3. Ohio's 11th congressional district - Wikipedia

   en.wikipedia.org/wiki/Ohio's_11th_congressional...

   The term may also refer to Ohio State Route 11. Ohio's 11th congressional district encompasses portions of Cuyahoga County in the Northeast part of the state —including all of Cleveland. It has been represented by Shontel Brown since 2021. Ohio has had at least 11 congressional districts since the 1820 census.

4. Diamond (gemstone) - Wikipedia

   en.wikipedia.org/wiki/Diamond_(gemstone)

   Diamonds are one of the best-known and most sought-after gems, and they have been used as decorative items since ancient times. The hardness of diamond and its high dispersion of light—giving the diamond its characteristic "fire"—make it useful for industrial applications and desirable as jewelry. Diamonds are such a highly traded commodity ...

5. Opal - Wikipedia

   en.wikipedia.org/wiki/Opal

   It weighs 17,000 carats (3.4 kg; 7.5 lb) and is 11 inches (280 mm) long, with a height of 4 + 3 ⁄ 4 in (120 mm) and a width of 4 + 1 ⁄ 2 in (110 mm). [29] The Mintabie Opal Field in South Australia located about 250 km (160 mi) northwest of Coober Pedy has also produced large quantities of crystal opal and the rarer black opal.

6. United States District Court for the Northern District of Ohio

   en.wikipedia.org/wiki/United_States_District...

   The U.S. District Court for the Northern District of Ohio (in case citations, N.D. Ohio) is the federal trial court for the northern half of Ohio, encompassing most territories north of the city of Columbus. The court has courthouses in Cleveland, Toledo, Akron and Youngstown . Appeals from this court are heard by the United States Court of ...

7. Cut (gems) - Wikipedia

   en.wikipedia.org/wiki/Cut_(gems)

   Cut (gems) A decorative glass crystal about 4 cm (1.6 in) in diameter, having a facet cut often applied for gemstones. At some positions, coloured light (see rainbow colouring) can be regarded caused by the intended optical prism effect of the cut. A gemstone desired to be used in jewelry is cut depending on the size and shape of the rough ...