RocksdayArkansas State Rock, Mineral & Gem: Quartz crystal, Bauxite, Diamond
Arkansas's state mineral is quartz crystal. Arkansas's state rock is bauxite. Arkansas's state gem is diamond, adopted in 1967.
Symbol names and dates are taken from primary state sources linked below. Informal or proposed symbols are not listed unless adopted.
State mineral: Quartz crystal
Quartz is a mineral (SiO₂) with a Mohs hardness of 7 and a vitreous luster, usually colorless, white or gray.
Often confused with: Albite, Apophyllite, Beryl
Also an official symbol of: Alabama
State rock: Bauxite
Bauxite is a sedimentary rock with a Mohs hardness of about 1–3 and an earthy luster, usually red, brown, pink or white.
Often confused with: Ironstone
State gem: Diamond
- Adopted:
- 1967
- Law:
- Act 128 of 1967
Diamond is a mineral (C) with a Mohs hardness of 10 and an adamantine luster, usually colorless, yellow, brown or gray.
Diamonds come from the Crater of Diamonds State Park near Murfreesboro, where the Secretary of State notes visitors can dig and keep what they find.
Often confused with: Herkimer Diamond, Moissanite, Quartz
Arkansas state symbols FAQ
What is the state mineral of Arkansas?
Arkansas's state mineral is quartz crystal.
What is the state rock of Arkansas?
Arkansas's state rock is bauxite.
What is the state gem of Arkansas?
Arkansas's state gem is diamond, adopted in 1967 (Act 128 of 1967).
Sources
We cite primary sources (statutes, state government pages, federal regulations, and land-manager sites). Third-party listicles are not used as citations.
- Arkansas State Symbols activity sheets — Arkansas Secretary of State (accessed 2026-10-24).
- Gemstone — Arkansas Geological Survey (accessed 2026-10-24).
Last verified 2026-10-24. Corrections welcome: if a statute has changed, tell us and we'll re-verify.
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