byrdslyfe Posted April 22 Share Posted April 22 all of these rocks are just coming up out the ground in my yard and no one can tell me what kind of rocks or gems minerals they are and it's driving me crazy Link to comment Share on other sites More sharing options...
klunker Posted April 25 Share Posted April 25 Quartz. Link to comment Share on other sites More sharing options...
Geologyhound Posted April 27 Share Posted April 27 The mica flakes would indicate metamorphic rocks like schist or gneiss. So you could have some quartzite. Feldspars would also be common. It is also possible you might have some marble. Marble should react (fizz) with dilute acid like hydrochloric. Link to comment Share on other sites More sharing options...
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