Need help with creating a LED base Submitted by TheNewRow t3_11t0miy on March 16, 2023 at 5:31 PM in DIY 12 comments 1
arandomvirus t1_jcgnsok wrote on March 16, 2023 at 6:17 PM The mineral is gypsum, the crystal form is “selenite”. Made of calcium sulfate. Quartz is much harder, the mineral silica, the crystal form is quartz. Made of silicon dioxide Permalink 4
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