This pack includes 10 rough, natural quartz stones in assorted colors. Quartz is a mineral made of silicon dioxide and is the most common found in nature. This mineral has a crystalline structure, whether it is visible to the eye or visible only under a microscope. These quartz stones can be used with rock tumblers to make smooth quartz pebbles or can be used naturally, as they are, for jewelry or decoration. 

• Quantity of 10 natural quartz stones in assorted colors
• Each rock measures approximately 1.5 inches in length