国产内射手机免费视频_特级太黄毛片免费播放_日韩一区不卡中文字幕在线_天堂在线最新版www资源_一级毛片观看片色欲va_中文综合国产无码_成人电影国产a毛片_五月的丁香六月的婷婷综合_黑色丝袜女神呻吟小道具在线_国产XXX护士爽免费看

What is Limestone

What is Limestone

Limestone refers to carbonated clastic sedimentary rock without any metamorphism. Calcium carbonate deposited in limestone lakes and seas is formed by compacting and cementing after losing moisture. Limestone can be divided into granular limestone (flowing water) according to its origin. Transportation and sedimentation); biological skeleton limestone and chemical and biochemical limestone.

Carbonate rocks are mainly composed of calcite. They sometimes contain dolomite,clay minerals and clastic minerals. They are grey,grayish white,grayish black,yellow,light red,maroon and other colors. It reacts violently with dilute hydrochloric acid.