State precious gemstone
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Leaders of states in the U.S. which have significant mineral deposits often create a state mineral, rock,
stone In geology, rock (or stone) is any naturally occurring solid mass or aggregate of minerals or mineraloid matter. It is categorized by the minerals included, its Chemical compound, chemical composition, and the way in which it is formed. Rocks ...
or gemstone to promote interest in their natural resources, history, tourism, etc. Not every state has an official state mineral, rock, stone and/or gemstone, however. In the chart below, a year which is listed within parentheses represents the year during which that mineral, rock, stone or gemstone was officially adopted as a state symbol or emblem.


Table of minerals, rocks, stones and gemstones


See also

* Lists of U.S. state insignia *
List of U.S. state fossils Most American states have made a state fossil designation, in many cases during the 1980s. It is common to designate one species in which fossilization has occurred, rather than a single specimen, or a category of fossils not limited to a single ...


Endnotes


References


External links

{{DEFAULTSORT:List Of U.S. State Minerals, Rocks, Stones And Gemstones
Minerals In geology and mineralogy, a mineral or mineral species is, broadly speaking, a solid chemical compound with a fairly well-defined chemical composition and a specific crystal structure that occurs naturally in pure form.John P. Rafferty, ed ...
U.S. state minerals, rocks, stones and gemstones U.S. state symbols U.S. state symbols .U.S. state symbols