The experimental results congruously show that the sandstone aggregate is alkali-silica reactive, and the reactivity mainly results from chalcedonic microcrystalline quartz and undulated extinction quartz.

試驗結果一致表明了該砂巖骨料具有潛在的ASR活性日韩一级精品，其堿活性主要來自于玉髓狀微晶石英和波狀消光石英。

A siliceous rock of chalcedonic or opaline silica occurring in limestone .

這是在風化的灰?guī)r露頭上用較小的AB距(40m)記錄的99精品国产高清久久久久久。

"Chalcedonic quartz with trace elementals enhancing their spectral variation," Dr.

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This rock contained chalcedonic cement before it underwent diagenesis, a process where low temperatures and low pressures alter the content of sediments before they finally lithify, or turn into rock.

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chalcedonic：石髓的

chalaza 系帶 | chalcedonic 石髓的 | chalcedony 玉髓

chalcedonic：石髓

石蒜素lycorisin | 石髓chalcedonic | 石筍stalagmite

chalcedonic：石髓的, 堅強的

chalcanthite | 膽礬, 五水( 合) 硫酸銅, 藍礬 | chalcedonic | 石髓的, 堅強的 | chalcedony | 玉髓

chalcedonic：石髓的 (形)

chalaza 卵帶; 合點; 卵黃系帶 (名) | chalcedonic 石髓的 (形) | chalcedony 玉髓 (名)

chalcedonic chert：玉髓質燧石

凝灰球;火山彈丸 chalazoidites | 玉髓質燧石 chalcedonic chert | 玉髓 chalcedonite