在这种温度下，水中富含的透石膏，溶解于石膏中。这种软的矿物就形成我们看到的奈卡洞穴晶体的形状。
At this temperature the mineral anhydrite , which was abundant in the water , dissolved into gypsum , a soft mineral that can take the form of the crystals in the Naica cave .
透石膏