Buy Quartz From A Quartz Mine This beautiful Ron Coleman-mined quartz crystal cluster is enhanced to a smoky black color. As the images show, this quartz crystal has several points. How is white quartz enhanced to a smoky quartz color? Ionizing radiation burns the aluminum, resulting in a beautiful black color. It’s the same technology used to sterilize medical tools and equipment. Note the beautiful white sleet-like sprinkles throughout this smokey quartz specimen. Approximate measurements: 9 inches tall by 6 inches wide by 5 inches deep. Cleaning Instructions: Gently clean this with a soft-bristled paintbrush and a damp cloth, then pat it dry. Origin: Ron Coleman Mining, Arkansas Please ask questions. Wholesale pricing is available to qualified retailers. . Shipping Terms: Your order will be carefully packed and shipped via USPS or UPS within 3 weekdays of purchase. California Proposition 65 Warning ⚠️ WARNING: This product can expose you to chemicals including crystalline silica (respirable), which is known to the State of California to cause cancer. For more information, visit www.P65Warnings.ca.gov.