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Rock found in lake

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Hi. I found this rock in a lake and I would love to know what you think it is. The white looking part is like a shiny glass looking thing and its all over the rock when you shine light on it.  :)

asked Aug 18 by Alixx (160 points)

1 Answer

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The shiny bits are probably mica shards, or even small pieces of quartz crystals, the rocks themselves look like sedimentary rock like sandstone and limestone.
answered Aug 19 by Weasel (38,360 points)

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