Dicaperl Perlite Mine, Socorro, Socorro County, NM
The perlite ore is shipped in 100 ton sealed railcars (Figure 4) to keep it from becoming wet and heavy. On average, forty-to-fifty of the 100-ton sealed cars are shipped per week. The perlite is usually shipped while unexpanded to cut down on shipping costs. Since perlite expands 40-50 times in size, it becomes uneconomical to ship from ...