Elemental Specimen Set Tellurium 10mm (Metallic Germanium, Antimony, (Ge, Sb, Te) Cubes)

---------------------------------------------------------------------- 【Voltage Compatibility】 When using electrical appliances, please note that they are designed for Japanese voltage specifications (90-110V), so if you use them with a different voltage, it may cause a malfunction. 【Plug Type】 Our products use Japanese plug types (A or B type). Please use a conversion adapter if necessary. 【Important Note on Transformers and Adapters】 A transformer adjusts voltage to match your device’s requirements. A conversion adapter only changes the plug shape and does not adjust voltage. Using only a conversion adapter without a transformer may result in damage to the product. 【Liability】 We are not responsible for malfunctions or damages caused by improper use, such as operating the product without a transformer. ---------------------------------------------------------------------- [Product Overview] This is a set of 10mm cube specimens of germanium, antimony, and tellurium. [Identification] (Front) [Atomic number, element symbol, English name, density], (Back) [Purity, atomic weight] [Appearance and Features] It has a dark, silvery-white metallic sheen. [Storage and Handling] Germanium and antimony are stable in air, but they are brittle and easily chipped, so please handle with care. Tellurium oxidizes relatively quickly in air, causing the surface to darken. We recommend storing them in an airtight container. [Other] A dedicated glass display case is included. These are elemental specimens for collection and display. There may be slight variations in the appearance of each product. We inspect each item individually and only sell products that meet our standards. However, if you are not satisfied for any reason, we will issue a full refund.