I dont have the latest market price or the criteria to determine whether a product is expensive or not. However, quartzite is generally considered a high-end stone due to its durability and unique beauty. Brazilian Escuro Nuvolato Quartzite may also be expensive due to its rarity and exclusive sourcing. The final cost of the stone also depends on the slab size, quality, and the suppliers pricing strategy. Its recommended to do market research, compare prices, and choose a reliable supplier or stone dealer to get the best value for money.