Inner Reflection | Protection | Practicality PRIMARY CHAKRA: Root ZODIAC: Capricorn, Aries, Scorpio, Sagittarius ELEMENT: Earth NUMERIC VIBRATION: 1 HARDNESS: 5 - 5.5 MINERAL CLASS: Mineraloids CRYSTAL SYSTEM: Amorphous CHEMICAL COMPOSITION: Silicon Dioxide w/ Impurities Crystals come in medium to large size. Mindful Notice: Natural gemstone comes from mineral. Due to the naturality, the stones may have tiny flaw and variation of colors. Meanwhile, cutting or polishing also makes every piece its own unique gemstone which will vary in color and size. Sacred Stone Collections is not an independent therapy, but one that is part of a holistic healing approach. By using this site and associated materials, you acknowledge and agree that you personally assume responsibility for your use or misuse of this information.