Product Variations - Lumps, Ingots, Grits. Two grades are available (Grade-A and Grade-B) Product Description - Quartz crystal is widely used in various industries. Our crystals are best known for their purity and occurance. Our crystals are one of the top notch quality in the market. Product Price - $250-$500 Product Origin - Tamil Nadu, India Special Features - We have a large mining capacity for crystals. We also mine a few rare crystals like rose and amwthyst crystals. Minimum Order Quantity - 1 Twenty foot container