This is an ancient natural glass carving.  This material is also known as andara.  Neolithic natural glass, agate, and jade carvings have been found in parts of Inner Mongolia, ranging down to Liaoning, China.  This piece is from that region.  The carving style and iconography depicted are indicative of the Neolithic Hongshan (Red Mountain) Culture, dated from 4700 to 2900 BC.  I have been researching andara glass for nearly 7 years now.  One of the first notes I made back then was that if this was indeed a natural material, then ancient artifacts made from it must surely exist.  I am happy to say that they do exist, and this is one of them.  I also learned during my research that this material was regarded as an imperial national treasure in China until the 1700's, and according to ancient temple and monastic documents, was as hard to cut and carve as jade.  This piece is 3.25 inches tall, and weighs 105 grams.  There are suspension holes on the back of the piece for wearing or hanging.  The zhulong, or 'pig dragon' is one of the most prolifically depicted icons in Hongshan culture carvings.  Domestic shipping with delivery confirmation on this item is free.  Thanks for shopping :)