黄河奇石,主要产于黄河中上游,以兰州一带最为丰富。宋代杜绾在其所著的《云林石谱》中就有记述,并称其为“兰州石”。黄河在其千万年的形成中,接纳了洮河、大夏河、湟水河等多条支流和这些支流所带来的巴颜喀拉山、阿尼玛卿山、祁连山等众多山脉的各种岩石,形成了黄河石多彩多姿的内容和形态。主要有以自然石纹形成的各种画面石、以天然外型形成的象形石以及无具休形象画面而以其色彩花纹和奇特形体取胜的观赏石及各种古生物化石。根据其特点,黄河石大致分为画面石、象形石和观赏石,一般将古生物化石归于观赏石类。黄河石的特点可用五个字来概括:“雄、美、丰、全、圆。”雄:黄河石气势雄宏豪放,画面构图粗犷、古朴、凝重,蕴藏量大,品种多。透露着一种西北汉子般的豪放、纯朴的性格,给人一种黄土高原宏大、粗犷的风格;美:画面石是黄河石的主要部分。其画面包罗万象,山水、人物、花鸟、动物、文字无所不有,美不胜收。或抽象 Yellowstone, mainly in the middle and upper reaches of the Yellow River, Lanzhou area is the most abundant. Du Xun in the Song dynasty in his “Yunlin stone spectrum” there is a description, and call it “Lanzhou stone”. During the formation of tens of millions of years, the Yellow River accepted many tributaries such as the Bahe River, the Daxia River and the Huangshui River, and various mountain ranges brought by these tributaries such as Bayanhar, Animaqing and Qilian Mountains Rock species, the formation of the Yellow River stone colorful content and form. Mainly with natural stone patterns formed by a variety of picture stone, the natural appearance of the formation of the pictographic stone and no image of Hugh Hugh in its color patterns and strange shape to win the ornamental stones and various fossils of paleontology. According to its characteristics, the Yellow River stone is roughly divided into picture stone, pictographic stone and ornamental stone, generally classified as ancient ornamental rock fossils. The characteristics of the Yellow Stone can be summarized in five words: “male, the United States, abundance, all, round. ” Xiong: Yellow River rock Xiong Hong Hao release, the composition of the picture rough, simple, dignified, large reserves, variety. Revealing a kind of North-West manlike bold, simple character, giving a magnificent, rugged style of the Loess Plateau; the United States: picture stone is the main part of the Yellow River stone. The picture is all-encompassing, landscapes, figures, flowers and birds, animals, writing everything, beautiful. Or abstract