The average flexural strength of Brazils Crystal Imperiale Quartzite is typically around 15-20 megapascals (MPa). However, it is important to note that the flexural strength can vary depending on the specific batch and quality of the quartzite. It is advisable to consult with quartzite suppliers or manufacturers for more accurate and up-to-date information on the flexural strength of Crystal Imperiale Quartzite.