HAND POLISHED OBSIDIAN DISC 7 cm C1667 - INDIVIDUAL PIECE Individual piece of 100 percent natural obsidian, hand polished to a deep mirror shine, in the format of a round disc with rounded profile. It is a piece of 7 cm diameter, with a smooth surface and very comfortable, ideal both for collection and display and for decoration, meditation and moments of relaxation. This listing corresponds to 1 piece. Reference code C1667. Important clarification: this piece is genuine obsidian, a natural volcanic glass, polished to be smooth to the touch and with an intense reflection. Obsidian is a volcanic glass of siliceous composition, formed by the rapid cooling of lava rich in silicon dioxide, which is why it lacks a crystalline structure and shows a conchoidal fracture and a very characteristic vitreous luster, with an approximate hardness of 5 to 5.5 on the Mohs scale and a density close to 2.4. Once hand polished it shows a smooth surface, cool to the touch and with an intense reflection. In this piece the deep and uniform black color typical of black obsidian can be appreciated, with that mirror finish that can only be achieved with careful and patient polishing. Being 100 percent natural, the piece has not been dyed, heated or artificially treated: the color and shine are those of the original volcanic material, and each unit may present slight natural variations in tone and texture that make it unrepeatable. Its round shape and its 7 cm size make it very pleasant to keep on the desk, in a showcase, on a display stand or to hold in the palm during moments of calm, and it also works as an elegant and minimalist decorative object or as a gift with presence. It is a perfect selection for collectors of volcanic glass, for those looking for artisan quality polished pieces in a round format, and for those who value obsidian for its sober beauty. You receive 1 piece of hand polished obsidian, of the same characteristics, quality and size as shown in the photographs (7 cm diameter); being natural material polished by hand, the exact tone and pattern may vary slightly. SPECIFICATIONS: Product: Obsidian disc (round cabochon with rounded profile), sold per individual piece. Quantity per purchase: 1 pc. Stock available: 1 pc  Material: 100 percent natural black obsidian (volcanic glass). Finish: Hand polished, mirror shine. Dimensions: 7 cm diameter, estimated thickness approx 1 cm. Weight: not stated; estimated approx 90 to 110 g per piece. Treatment: undyed, unheated, untreated.