From Black Rose Mineral's Facebook page:
Starting Friday July 20th will start a 24 hour 40% off sale! It will start at midnight PST (Thursday night) and end on Friday night at midnight PST. Use coupon code "madness."
Also the rest of the weekend there will be a 25% off sale. This will run from Saturday July 21st through Wednesday July 25th. Use coupon code "superstar."