Pumice with Olivine, Manuka State Park, Big Island
When we stopped briefly in Manuka State Park, Jer spotted this piece of pumice studded with olivine. (Unfortunately, we didn't have time to visit the green sand beach.)

Taken on June 15, 2009 at 10:06AM with a Olympus Imaging Corp. - E-620
f/7.1 at 1/160sec (iso 200), focal length: 42mm

Image Copyright © 2009 Jeremiah Blatz  

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