By Reliable I Mean Less Likely To Have Problems With. Less Likely For Me Having To Go Take It To A Jewelry Shop Because The Mechanism Malfunctions. I Already Know Quartz Are More Accurate.
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This Site Might Help You. RE: How are quartz, sandstone, arkose and greywacke formed? All are considered sandstones, but how do they differ? please be as detailed as would be necessary to answer this question for a college geology professor
Quartz is the mineral.It forms in silica rich volcanic rocks like granite and rhyolite. Sandstone is any rock formed from any rock that is from sand from a desert. All sandstones are clastic sedimentary rocks. it's the eviroment too. Graywacke is mostly oceanic in origin and found in deep marine trences and is mainy mostly metamorphic in composition with a lot of felspar and mica as well as quartz also it has a sugary look to it. Arkose comes from erosion of granite mountains and outcrops also it looks almost like a granite. Also there is a rock callled orthoquatzite a sedimentary variety of quartzite that is completely made of quartz it's found in mainly deserts because quartz is the hardest of the minerals that make up the granite so they often survive the erosion of the granite.
