This is a polished on one side slab of petrified wood or possibly palm from Madagascar It is approximately 5 inches by 4" in circumference and about 3/8 inch thick. It weighs 6.45 ounces. The item pictured is the item shipped . Be sure you designate "L" as we have several others. This is a beautiful rich beige color, perfect for a coaster (although rather large and heavy or paperweight) Could also serve as a base to display something else. It has some slight crystallization that might be seen if you enlarge the second photo. I am no expert, I just enjoy them. Hate to give this one up but times are tough. If purchasing multiple items email me as weights will be off since we must add the package weight including the item. Most the time it will be lighter than calculated, thus several items are significantly less to ship together. Be sure and check out our entire store or email us for other items. Were equipped to photograph and email pictures back of a great range of unique inventory we will never be able to list all of it. More information about us including email can be found by clicking "About Me"