If anyone here wants to know more about cat litter, or has any questions, just letting you know I am here! I've worked for over half a year as a lab technician at a bentonite plant. Although the majority of my tests are not for cat litter, I have done enough to know a lot about it. I can tell you about the tests we perform on it (moisture, granulometry, absorption, efficiency, strength, density, color, etc.), as well as the composition (more about the clay, where it comes from, etc.). I can tell you about the steps involved in making cat litter in an industrial setting (and I have also "made" cat litter from the raw clay in the lab). Just let me know if you have any questions.