Natural Blue Chalcedony Quartz Rough Stone Gemstone Crystal Mineral Cabochon Rock Cabs for Cabbing/Carving - Madagascar - 5PCS

You will get 5 pcs of the Blue Quartz Rough Stones similar to the ones in the listing, the size and the color of the stones may slightly vary as well due to the fact that all minerals are different. (see photo, the photos are taken under bright light, Bowl NOT included)! Average Size: 36 x 27 x 19 mm / 1 7/16 x 1 1/16 x 3/4 Inches; Average Weight; 11-38g / 0.4-1.3oz; Quartz is one of the most well-known minerals on earth. It occurs in basically all mineral environments, and is the important constituent of many rocks. Quartz is also the most varied of all minerals, occurring in all different forms, habits, and colors. There are more variety names given to Quartz than any other mineral. Although the Feldspars as a group are more prevalent than Quartz, as an individual mineral Quartz is the most common mineral. Chalcedony is a member of the Quartz family with a cryptocrystalline structure. Its name may be derived from the Greek port city of Chalcedon in Asia Minor. The ancient civilizations of Egypt, Greece and Rome used varieties of Chalcedony in jewelry and carvings, and, as gems of antiquity, they were believed to imbue their holders with certain powers. Chalcedony is a common quartz found in United States, Austria, Czech Republic, Iceland, Mexico, Britain, New Zealand, Turkey, Russia, Brazil, Madagascar. Chemical Formula: SiO2; Color: Colorless, white, purple, pink, brown, and black.; Hardness: 7; (The above information is provided solely for informational purpose. Kindly note that all stones are offered for decorative purposes only. Please, handle your stones with great care, do not grind or crumble them, do not dip or add them into your food or drink, do not use any parts of them in any elixirs, potions, lotions etc. Always make sure you wash your hands before and after working with your crystals.)