Louisiana

 

Geological State Symbols Across America  Geology of the National Parks Through Pictures

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Louisiana State Geological Symbols
Type
Symbol
Year Est.
State Mineral
Agate
1976/2011
State Gemstone
Cabochon Cut Oyster Shell
2011
State Fossil
Petrified Palmwood
1976

 

State Mineral: Agate

 


State Gemstone: Cabochon Cut Oyster Shell

 


State Fossil: Petrified Palmwood

Petrified wood is not actual wood, however it was wood at one point. Petrified wood is a fossil that formed from pieces of wood that have been mineralized. Mineralization is a process where groundwater moves through the wood and replaces all of the wood molecules with molecules of other substances, most often silica (i.e. quartz). This means that petrified wood actually isn't wood anymore, but a fossil of the former wood.

 

Related: Arizona State Fossil - Petrified Wood (Araucarioxylon arizonicum); Mississippi State Stone: Petrified Wood; North Dakota State Fossil: Teredo Petrified Wood; Texas State Stone: Petrified Palmwood; Washington State Gem: Petrified Wood

 

References

https://statesymbolsusa.org/states/united-states/louisiana


Geology of Louisiana's National Parks

Through Pictures

(at least the one's I have been to)