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卵石是自然界岩石因地壳运动,在风化崩塌等外力作用下,在河流中长期侵润、冲刷,又经砂石反复翻滚、摩擦、搬运后最终形成的结晶。又因河水流经不同地质构造的山体,而不同山体的岩石也就产生了众多不同成分的、晶莹剔透、颜色丰富、光滑少棱的卵石。其中歙砚的“子石”也称“仔石”、“仔料”也就是卵石的一种,是远古时候的砚山石因各种原因脱离砚坑进入溪水中,从而形成特殊表皮的一种卵石。作为代表歙砚石精华的龙尾石,其产地在今江西婺源龙尾
Pebble is the natural rock due to crustal movement, weathering collapse and other external forces, long-term infiltration in the river, erosion, and after repeated tumbling sand, friction, handling the final formation of the crystallization. Because of the river flow through the mountains of different geological formations, and different mountain rocks also produced a large number of different compositions, crystal clear, rich in color, smooth and less edge pebbles. Among them, the “stony stone” of the stained glass is also called “stupid stone ”, “ear material ” is also a pebble, ancient Yanshan stone due to various reasons from the Yan pit into the stream, which A pebble that forms a special epidermis. As the representative of Yan stone essence dragon tail stone, its origin in Jiangxi Wuyuan Dragon tail