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Posted in response to cauliflower-shaped rock some type of quartz? from Dan Baker on July 24, 2010 at 14:16:15:
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Dan, your rock looks like a quartz geode. The heavy weight you described sounds like it's not hollow inside, but solid quartz stained with hematite. There may be a small pocket inside containing clusters of quartz crystal points. The only way to know is to break it open. Good luck. John
From John - July 28, 2010 at 08:38:24
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