derek1985 Posted November 27, 2023 Share Posted November 27, 2023 It weighs nothing makes hand feel funny and absorbs water Link to comment Share on other sites More sharing options...
jasong Posted November 27, 2023 Share Posted November 27, 2023 What do you mean by "makes your hand feel funny"? Can you take a photo in focus on the mineral? Does it float in water? I'd guess based off no real data here something like pumice or maybe vermiculite (mineral, not expanded). Or maybe just some man-made cinder, clinker, or other slag type stuff. 1 Link to comment Share on other sites More sharing options...
Geologyhound Posted November 27, 2023 Share Posted November 27, 2023 When it absorbs water, does it expand in size? Can you scratch it with your fingernail? Link to comment Share on other sites More sharing options...
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