Mineral specimen 30x40mm egg-shaped (obsidian)

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We are selling from Japan. Our Products are Authentic only.

★★★★★★★★★★★ [Product Overview] This is an egg-shaped mineral specimen measuring 30mm x 40mm. [Name] Obsidian [Main components] SiO2, Al2O3 [Mineral description] It is a rock formed when magma cools and solidifies rapidly. It has properties similar to glass, and when broken, it has a sharp shell-like cross section. Because of these properties, it has also been used as a tool or weapon. [Other] A dedicated stand is included. These are mineral specimens for collection and ornamental purposes. There are individual differences in the appearance of the products. We inspect each product individually and only sell quality products, but if you are not satisfied with the product, we will accept returns.