冻石，简称“冻”。是用于雕刻工艺品和印章的材料，晶莹润泽，可分为多种冻石。冻石也可理解为冷冻的石头。透明或半透明肉冻状的块状叶蜡石、地开石。按色调分为白冻、乌冻、黄冻、粉冻、灰冻、黑白彩、黄白彩等。 色形有团块状、条带状、星点状、云雾状等形态。其质地、透明度、颜色好坏、血度(含辰砂与否及量比、分布)、色泽鲜艳程度以及形态等评价标准，在各矿山并不一致。含辰砂的已列为另一亚种——鸡血冻。
此枚印章选材寿山石的水坑冻石，石质如玉，石色红艳怡人。
This commemorative stamp selection Shoushan stone stone cold puddles, stone jade, stone color Hongyan pleasant.
端砚，根据石质不同可分青花、石眼、鱼脑冻、蕉叶血、七捺、金银线和冰纹等品种。
There are several kinds of duan inkstones such as blue flower stone eye fish brain jelly blood on plantain leaf seven slanting strokes gold and silver thread and icy veins.
结果表明，复合膨胀剂对石屑砂浆凝结性能和抗冻性能几乎没有影响，可以改善其保水性和抗渗性。
Results indicated that the compound expansion agent almost hasn't effect both on setting and frost resistance of crushed stone mortar, but can enhance its permeability resistance ability.
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