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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. [81] ^ 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 ...

  3. List of gold mines in the United States - Wikipedia

    en.wikipedia.org/wiki/List_of_gold_mines_in_the...

    This list of gold mines in the United States is subsidiary to the list of mines article and lists working, defunct and future mines in the country and is organised by the primary mineral output. For practical purposes stone, marble and other quarries may be included in this list.

  4. Gold mining in the United States - Wikipedia

    en.wikipedia.org/wiki/Gold_mining_in_the_United...

    US annual gold production (1840–2012) In the United States, gold mining has taken place continually since the discovery of gold at the Reed farm in North Carolina in 1799. The first documented occurrence of gold was in Virginia in 1782. [1] Some minor gold production took place in North Carolina as early as 1793, but created no excitement.

  5. Confederate Gulch and Diamond City - Wikipedia

    en.wikipedia.org/wiki/Confederate_Gulch_and...

    Placer gold discoveries, like Confederate Gulch, attracted a diverse and cosmopolitan population. While many came from the Midwest and border states like Missouri, many also came from mining areas in California, Idaho and Nevada. Because they moved about so constantly, they cared little about background or status.

  6. List of lost mines - Wikipedia

    en.wikipedia.org/wiki/List_of_Lost_mines

    Usually the mines are said to contain valuable elements or minerals such as gold, silver or diamonds. Often there is a map or other document allegedly detailing the history or location of the mine. Common to all the lost mine legends is the idea of a valuable and mysterious resource being lost to history.

  7. St. Genevieve marble - Wikipedia

    en.wikipedia.org/wiki/St._Genevieve_marble

    St. Genevieve Gold Vein" is light or medium gray in color, with veins (running from buff to tan in color) running through it. [3] Cross-sections of corals and crinoids can be seen in the Gold Vein type. [3] [2] In the 1910s, it was widely considered the best "marble" found in the U.S. and known for its strength.

  8. Old Mines, Missouri - Wikipedia

    en.wikipedia.org/wiki/Old_Mines,_Missouri

    The southeast Missouri lead district is the location of the earth's greatest known concentration of galena, an ore of lead. [6] Found first in surface deposits over a wide area, and now mined deep underground, the ore was known to the native Indians of the region from whom it became known

  9. Southeast Missouri Lead District - Wikipedia

    en.wikipedia.org/wiki/Southeast_Missouri_Lead...

    The Southeast Missouri Lead District, commonly called the Lead Belt, is a lead mining district in the southeastern part of Missouri. Counties in the Lead Belt include Saint Francois, Crawford, Dent, Iron, Madison, Reynolds, and Washington. This mining district is the most important and critical lead producer in the United States. [1] [2]