... pegmatite, biotite granite, plagioclase diorite, mixed gneiss, tuff, rock and other mixed light particles.930°~32 ... rocks, felsic migmatitic amphibolite, anorthosite, granite siliceous tuff lava gravel.115°~8°,8°~10°,10°,15°,22 ... °~25°Tuff, tuff fused quartz chert, dacite, etc.125°~8 ... 10°,15°,22°~25°Quartz chert, chalcedony, melting tuff, pure quartzite, etc. Information above is for ...