Marble is heat resistant and waterproof after sealing. Yes, it is softer than it’s sister material, granite, so it can stain, etch or scratch, but only becomes more beautiful over time and use. Most marble has veining mineral deposits throughout.
A marble slab is suitable for internal use because of its mirror-like polish finish. Most people are familiar with marble and it is very popular for kitchens, fireplaces, countertops, backsplash, floors and bathrooms.