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What kind of rock is this? (See link)
It was found during a building excavation in downtown washington DC.
It is baclk with gold speckles all over it. I can alomost crumble it apart, when i hold it i get black ciggarette ash looking stuff on my fingers.
https://plus.google.com/photos/108784701126895091632/albums/5911700590820825585?authkey=CP3XveK2rrK5...
Can't open it. It requires a password.
John
“Civilisation exists by geological consent, subject to change without notice.” - Will Durant
GeologyRocks
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What kind of rock is this???
Submitted by tomahawk544 on Thu, 08/15/2013 - 16:30.What kind of rock is this? (See link)
It was found during a building excavation in downtown washington DC.
It is baclk with gold speckles all over it. I can alomost crumble it apart, when i hold it i get black ciggarette ash looking stuff on my fingers.
https://plus.google.com/photos/108784701126895091632/albums/5911700590820825585?authkey=CP3XveK2rrK5...