What appear to look like simple rocks around your house may not always be as innocent as they seem. Vermiculite looks like a shiny rock and could be dangerous. Would you know if you encountered vermiculite around your house? Here is a simple identification test to help you identify vermiculite.
Instructions: Choose if each image is Vermiculite or not. Once you make your choice, click the arrow for the next image.
(Hint: You can click the image for a larger view)