Crystals are believed to harness Earth's energy for meditation, healing, and manifesting desires. Popular ones like amethyst, ...

To be clear, quartz itself is also a natural stone ... Quartz scores a 7 on the Mohs Scale of Hardness, which is a measure of ...

Quartz, felspar and mica are found in pegmatite rocks, which are an important source of many critical minerals such as beryl, lithium, niobium, tantalum, molybdenum, tin, titanium and tungsten ...