page_title: List of U.S. state minerals, rocks, stones and gemstones
section_title: Table of minerals, rocks, stones and gemstones
hierarchical_section_title: List of U.S. state minerals, rocks, stones and gemstones / Table of minerals, rocks, stones and gemstones
caption_attribution_description: English: Pearl necklace made from freshwater pearls.
context_page_description: Leaders of states in the U.S. which have significant mineral deposits often create a state mineral, rock, stone 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.
caption: Freshwater pearl (1986)
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