Smoky Quartz

Swarovski Genuine Smoky QuartzThe most common mineral family on earth, quartz comes in many varieties including amethyst, citrine, chalcedony, milky quartz, rock crystal and rose quartz. Smoky quartz, varying from dark brown to greyish brown, has gained in popularity in recent years due to its natural earthy tones. Like all quartz it is durable, rating a 7 on the Mohs scale. Most smoky quartz is irradiated rock crystal.