This listing is for a 0.8g sample of Carbon in the form of a glassy Carbon foam cube. The sides measure about 1in. This material is unique and has many amazing properties which make it suitable for use in aerospace applications. The material is also very light. This would make a great addition to someones element collection. Please check my other listings for more element samples. Looking for an element you don't see listed? Feel free to contact me through ebay because I can get almost anything. I have Na metal, K metal and Li metal available as well. I also have samples like As metal, Tl metal, Hg metal, White P, Br, Rb and Cs. Please don't hesitate to contact me through ebay if interested and I can create a custom listing for you. Thanks for looking