I've been researching how to clean my granite countertops without having to buy the expensive cleaning products like Granite Gold. Basically, you can just use mild dish soap, mixed with water. However, in my research, I came across this piece of advice.
If you are using some creams or powder don’t mix bleach and ammonia together, this combination creates a toxic and lethal gas. And this is really a very harmful for cleaning granite worktops.You know, it's one thing to be killed by lethal fumes from mixing toxic chemicals, but it's another thing altogether to damage your granite!
"As you fall unconscious from the poisonous vapors that are boiling within your lungs, try to avoid striking your skull against the granite. That could lead to cracks or scratches on the surface of the stone."