What type of rock and crystal?

Going through aome of my old rock collection.  What type of rock and crystal are in this geode?  Its about 3 inches in diameter.

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2 Answers

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  • Ron
    Lv 7
    3 months ago

    Looks like quartz drusy in rhyolite.

  • 3 months ago

    Probably chalcedony and /or quartz, although other minerals are possible.

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