Found a sticker with really small print attached. Mine is marble. This worked fine for two people. I put a dash of olive oil, Kosher salt, onion, garlic, half a pickled jalapeno, a couple of jalapeno carrot slices and started smashing. Then mixed in avocado. No other seasoning, no hot sauce and wife and me really enjoyed it. Used net zero carb tortillas. All worked out well for a good meal.