我们要采购氧化铁，褐铁矿，高岭土，石膏碳酸钙，砂玻璃，防火砖，长石，石英，膨润土，白云石，非金属矿物。
We want to buy Iron Oxide, Limonite, Kaolin Clay, Gypsum Calcium Carbonate, Sand Glass, Fire Brick, Feldspar, Quartz, Bentonite, Dolomite Metal Mineral.
主要矿物为二次结晶石膏和少量石英。
Recrystallized gypsum and a bit of quartz are main mineral composition.
墙由岩石块建成（岩石块里边的材料是叫做石膏的矿物）。
The wood is inside the walls. The walls are made of sheet rock (the material inside the sheet rock is a mineral called gypsum).
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