Large 2 kg shungite brick

Stone(s): Shungite Color: black Dimensions: 20 x 10 x 5 cm Approximate weight: 2–2.3 kg Number of stones: stone sold individually Shape: polished cube – Traces on the stone’s surface are its natural veins, not scratches. Photos are non-contractual. Classification: no classification recognized by the International Mineralogical Association. Amorphous carbon type mineral. Mohs hardness: 3.5 – 4 Density: 2.1-2.4 Origin: Russia, Democratic Republic of Congo Care instructions: unless the stone is polished, it leaves black marks on the hands, which are easily cleaned with water. The polished cube may leave black marks on the edges. Shungite is fragile, handle with care.