There is no specific information available about the average hardness of Chinas Pearl Flower Granite. The hardness of granite is typically measured using the Mohs scale, which ranges from 1 (softest) to 10 (hardest). Granite is generally considered a hard stone and typically falls between 6 and 7 on the Mohs scale. However, the hardness can vary depending on the specific type and location of the granite quarry. To determine the exact hardness of Chinas Pearl Flower Granite, it would be best to consult with a supplier or check the specific information provided by the quarry.