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Florida State Stone & Gem: Moonstone, Agatized coral

Florida's state gem is moonstone, adopted in 1970. Florida's state stone is agatized coral, adopted in 1979.

Symbol names and dates are taken from primary state sources linked below. Informal or proposed symbols are not listed unless adopted.

Moonstone specimen
Moonstone (not necessarily from Florida). Photo: Didier Descouens, CC BY-SA 3.0, via Wikimedia Commons

State gem: Moonstone

Adopted:
1970
Law:
Florida Statutes § 15.034; ch. 70-53

Moonstone is a mineral with a Mohs hardness of 6–6.5 and a vitreous to pearly luster, usually white, gray or orange.

How to identify moonstone →

Often confused with: Labradorite, Opal

Chalcedony specimen
Chalcedony (not necessarily from Florida). Photo: Robert M. Lavinsky, CC BY-SA 3.0, via Wikimedia Commons

State stone: Agatized coral

Adopted:
1979
Law:
Florida Statutes § 15.0336; ch. 79-278
Variety:
agatized coral

It is a variety of chalcedony. Chalcedony is a mineral (SiO₂) with a Mohs hardness of 6.5–7 and a waxy luster, usually blue, white or gray.

How to identify chalcedony →

Often confused with: Agate, Blue Lace Agate, Grape Agate

Also an official symbol of: Nebraska, West Virginia

Florida state symbols FAQ

What is the state gem of Florida?

Florida's state gem is moonstone, adopted in 1970 (Florida Statutes § 15.034; ch. 70-53).

What is the state stone of Florida?

Florida's state stone is agatized coral, adopted in 1979 (Florida Statutes § 15.0336; ch. 79-278).

Does Florida have a state rock?

Not by that name. Florida law names agatized coral as the state stone (1979) and moonstone as the state gem (1970), and has no state rock or state mineral.

Sources

We cite primary sources (statutes, state government pages, federal regulations, and land-manager sites). Third-party listicles are not used as citations.

Last verified 2026-10-24. Corrections welcome: if a statute has changed, tell us and we'll re-verify.

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