Calcite is soft and reacts to acids

Smoky quartz is silicon dioxide colored grey-brown to near-black by natural irradiation from radioactive elements in the surrounding host rock

and confidence

it was carried as a devotional object throughout the Middle Ages

Bracelets For Release Set Meditation Calcite is soft and reactsThree bracelets in violet, green, and smoky greya set built to wear together. This bundle brings together Amethyst, Chrysoprase, and Smoky Quartz as a complementary mineral trio. Amethyst is the violet variety of quartz (SiO), colored by trace iron and natural irradiation, Mohs 7the traditional February birthstone with well documented use in jewelry since antiquity. Chrysoprase is a nickel bearing chalcedony, the apple green color derived from nickel