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  2. List of Colorado state symbols - Wikipedia

    en.wikipedia.org/wiki/List_of_Colorado_state_symbols

    Gemstone: Aquamarine [20] April 30, 1971 HB 1104-1971 CRS 24-80-912 [1] Mineral: ... Colorado state centennial United States postage stamp; Type Symbol Image Issued

  3. 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 ...

  4. Portal:Colorado/State Symbols - Wikipedia

    en.wikipedia.org/wiki/Portal:Colorado/State_Symbols

    State tree: Colorado Blue Spruce (Picea pungens) State fossil: Stegosaurus (Stegosaurus armatus) State gemstone: Aquamarine: State mineral: Rhodochrosite: State rock: Yule Marble: State soil: Seitz soil: State folk dance: Square Dance: State ship: USS Colorado (SSN-788) State songs: Where the Columbines Grow & Rocky Mountain High: State sport ...

  5. Rhodochrosite - Wikipedia

    en.wikipedia.org/wiki/Rhodochrosite

    It is one of the national symbols of Argentina and the state of Colorado. Rhodochrosite forms a complete solid solution series with iron carbonate ( siderite ). Calcium (as well as magnesium and zinc , to a limited extent) frequently substitutes for manganese in the structure, leading to lighter shades of red and pink, depending on the degree ...

  6. Aquamarine (gem) - Wikipedia

    en.wikipedia.org/wiki/Aquamarine_(gem)

    Aquamarine is a fairly common gemstone, [6] rendering it more accessible for purchase, compared to other gems in the beryl family. [7] Overall, its value is determined by weight, color, [5] cut, and clarity. [8] It is transparent to translucent and possesses a hexagonal crystal system. [9]

  7. Kelsey Lake Diamond Mine - Wikipedia

    en.wikipedia.org/wiki/Kelsey_Lake_Diamond_Mine

    In 1996 the largest diamond found at the mine was discovered. Named the "Colorado Diamond," it was a 28.3-carat (5.66 g) yellow stone and the fifth-largest diamond found in North America. The gem was cut and polished by legendary New York diamond cutter Bill Goldberg which yielded a 5.39-carat (1.078 g) faceted stone that sold for $87,500. [5] [16]

  8. Mineralogy of the Pikes Peak Region - Wikipedia

    en.wikipedia.org/wiki/Mineralogy_of_the_Pikes...

    Scientists from around the world come to Colorado to study the minerals of this region. Because the granite covers a large portion of the Colorado Front Range, there are good mineral collecting areas scattered all over the Pikes Peak region. The collecting localities range from near Colorado Springs on the south to just west of Denver on the north.

  9. Gold mining in Colorado - Wikipedia

    en.wikipedia.org/wiki/Gold_mining_in_Colorado

    Gold mining in Colorado, a state of the United States, has been an industry since 1858. It also played a key role in the establishment of the state of Colorado . Explorer Zebulon Pike heard a report of gold in South Park , present-day Park County, Colorado , in 1807.

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