What is the green rock that the Bear Gulch Visitor Center is made of?
The green rock is pumice lapilli tuff that was quarried from within the monument, but until recently, no one knew what gives it its green color. In 2002, samples of the rock were analyzed and found to contain glauconite, a green mineral that is known to occur in marine environments where sediment is deposited along a continental shelf.
Related Questions
- Will the Graceland Plaza visitor center - including the Elvis Presley Automobile Museum and the Elvis airplanes exhibit - and the Graceland Crossing shopping center go away?
- How do I get to Muir Woods/Bear Valley Visitor Center/Point Reyes Station/ Point Reyes Lighthouse & Visitor Center?
- What is the green rock that the Bear Gulch Visitor Center is made of?
