I use Universal Stone. It's made in Germany and widely available in Finland (eg Prisma, Citymarket).
http://www.universalstone.eu/
Non-toxic, non abrasive. A natural product that biodegrades.... descriptions in English:
http://www.amazon.com/Universal-Stone-C ... B003KK98TQ
http://universalstone.ca/index.php
I use it in the kitchen eg for cleaning stainless steel pans but also ceramics and the hob, sink etc. I also use it to clean the glass door on the fireplace. I've even used it for cleaning shoes!
The product is quite expensive in Finland but one tub lasts me for ages and ages. (I think Lidl does a similar cheaper product in a yellow tub.)