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Texas State Stone

Petrified palmwood - see more prehistoric symbols
Pictures of worked petrified palmwood (actual size 13 - 29 mm) from:
Amy O'Connell's Petrified Palmwood (used by permission).
See All state Fossils and Geological Symbols.

Petrified Palmwood

Texas petrified wood video

Texas designated petrified palmwood as the official state "stone" in 1969. Petrified wood is actually a fossil.

What is now arid Texas was a lush tropical forest 100 million years ago. Trees that fell into mineral-rich mud before having a chance to decay became petrified wood, which is actually a quartz-like stone. The organic wood cells were replaced over time by minerals, often retaining the detailed shape of the original prehistoric wood. Petrified wood is called the most beautiful of fossils.

Rough petrified palmwood - see more state stones
Photo of rough petrified palmwood © Bernardine's - Petrified Palmwood Facts (used by permission). See All state Fossils and Geological Symbols.

The spotted look of palmwood is caused by fossilized rod-like structures within the original wood. Depending upon the angle the stone is cut, they show up as spots, tapering rods, or lines. Petrified palm wood is very hard and takes a wonderful polish, making beautiful jewelry. Petrified wood is also the state gem of Washington, and the state fossil of North Dakota and Louisiana.

Source:
Links:
Geology: Windows to the Universe - NASA
Petrified Wood by Your Gemologist Robert James
Petrified Wood by Paul V. Heinrich
The Mineral Calcite: Minerals by Name
Hell's Crust - Our Everchanging Planet: Savage Earth
All state Fossils & Dinosaurs
All Geological Symbols


    

 

Texas Symbols & Icons:

air force - tie
footwear - music  
artist - bird
bread - cooking  
dinosaur - dog  
dish - snack
fabric - tartan
folk dance
fish - insect
flag - pledge
flower - plant
gem - stone
hall of fame
instrument
 

mammal 1-2-3  
sport - vehicle
metal - molecule
name - nickname
pastry 1 2 - nut
pepper 1-2 - fruit
plays - railroad
reptile - shell
seal -quarter - motto
ship -tall ship
shrub 1-2
song 1-2
tree -grass -soil
vegetable
 

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and appreciation of our natural treasures and cultural heritage.