Wanderlust World Wanderlust World Every US state designates an official **state rock** (or mineral/gemstone/fossil) reflecting geologic heritage, economy, or history.
| State | Rock / Mineral | Significance |
|---|---|---|
| Arkansas | Novaculite | Whetstone capital (Ouachitas); Native American tools. |
| California | Serpentine | State rock (1965); ultramafic, asbestos concerns; Coast Ranges/Sierra. |
| Colorado | Rhodochrosite (Mineral) | Sweet Home Mine (Alma); "Alma Rose" specimen. (State rock = Yule Marble). |
| Florida | Agatized Coral (Stone) | Fossil coral → chalcedony; Tampa Bay region. (State rock = Limestone/Coquina). |
| Georgia | Staurolite (Mineral) | "Fairy Cross" twins; Fannin Co. (State rock = Quartz). |
| Michigan | Petoskey Stone | Fossil coral (*Hexagonaria*); Lake Michigan shores; glacial gift. |
| New York | Garnet (Mineral) | Barton Mines (Gore Mt) — world's largest; abrasive. (State rock = none official). |
| South Dakota | Fairburn Agate | Banded chalcedony; Badlands/Black Hills; lapidary prize. |
Some states have **Rock + Mineral + Gemstone + Fossil** (e.g., California, Colorado). Geology.com maintains a complete list.