Taking into account of the biogenic components, the algal dolomite, the main component of algal reefs, consisted of Cladosiphonia sinensis, Serpula shandongensis etc.
Sometimes the composition mineral besides the antigorite and the chrysotile, contains the few dolomite, the magnesite, the tremolite and the olivine and so on.
Using dolomite and sinter magnesia clinker as a main material and added with alkali metal phosphate binder and additives,amagnesia-calcia coating material has been developed.
There is siderite, iron dolomite , calcite, Barite, pyrite, anatase, rutile, piece quartz, the mica ( or hydromica ), diaspore,etc. in the impurity in the mineral .
After that, for days, thousands of tons of clay, sand, boron, and dolomite, were dropped by helicopter into the burning reactor to quell the fire, but also to try and prevent the spread of radiation.
That is probably why the United States government has a strategic helium reserve, which I didn't believe either when I first heard it, but we do: 16 billion cubic feet of the stuff trapped in dolomite deposits in Texas.