Pictures 1,2,4,6,8,9 all appear to be quartz and quartzite, quartz like material, in massive formation~ the crystals are all grown and impacted together. Pic 6 might qualify as an agate due to layering and what appears to be translucent bands though some massive quartz can form this way occasionally. Pics 8, 11, 12 are metamorphic rocks 8 and 12 appear to be granite or some granitoid with fine grain structure and layering. Pic 11 appears to be a pegmatite with large impacted crystals of quartz *white* among smaller feldspar *pink*. The other pictures I cant really tell much about. My thoughts.