Carnelian mineral specimens from India, supplied by weight in lots of 1 kilogram, the samples exhibit the typical waxy lustre expected of this mineral, colouration varies slightly piece by piece from a deep red to a bright orange and hues in between. Carnelian its self is a silica mineral, a variety of chalcedony, which in turn is within the quartz family of minerals. It is known to have been used as far back as 1800 BC as a gemstone or decorative stone, likely due to the vibrant orange colouration some pieces exhibit. The colouration comes from iron oxide impurities during formation giving it a rusty red, orange or brown colour. Commonly found in Brazil, India, Serbia and Germany, these particular mineral specimens come from India, they range in size between 20 mm and 50 mm and will come supplied in a polythene bag with an information label.