Comment, Like, & Favorite
Mining Drill Core Sample With Gold Content
Kaj R. Svensson
Photograph - Photograph
Gold ore. A mining drill sample with a high concentration of gold ore. This soft, heavy, acid- resistant metal is usually found in quartz veins, as a natural alloy with silver, and in concentrations of sedimentary origin. The main gold- bearing districts are Witwatersrand (South Africa), the Mother Lode (California, USA), the Yukon (Alaska, USA), Porcupine (Northwest Territory, Canada) and the USSR. It is used as a monetary standard, in jewellery, in dentistry and for scientific and electronic instruments.
May 7th, 2013
Viewed 69 Times - Last Visitor from Beverly Hills, CA on 01/15/2015 at 1:30 AM
copy and paste to your website / blog - preview