内蒙古自治区地质研究所,在对全区宝玉石资源进行调查时,于1987年7月12日,发现奇特的自然景观——玛瑙湖。玛瑙湖位于巴彦淖尔盟与阿拉善盟相毗邻的地方,即巴音戈壁之上。所谓戈壁,就是由小砾石或裸露的基岩组成的荒漠区,比沙漠地区还要荒凉。在浩茫的瀚海之上,有一广阔的玄武岩平凹——像洗衣盆一样低于地面的大平滩,如同天然机场一样坦荡,方圆数公里,上面铺满了玛瑙和碧玉,琳琅满目。玛瑙 Inner Mongolia Autonomous Region Institute of Geology, in the region of gem resources to investigate, on July 12, 1987, found a peculiar natural landscape - Agate Lake. Agate Lake is located in Bayannur League and Alxa League adjacent to the place, that is, Bayingebi above. The so-called Gobi, is composed of small gravel or bare bedrock desert region, even more desolate than the desert region. On the vast sea, there is a vast basalt flat concave - like a laundry basin below the ground of the large flat beach, as natural as the magnificent airport, a few kilometers radius, covered with onyx and jasper, dazzling array. agate