Black ceramic is generally tougher than glass. This is due to its higher hardness and resistance to scratching and wear. According to the Mohs scale of mineral hardness, which is a qualitative ordinal scale that characterizes the scratch resistance of various minerals through the ability of a harder material to scratch a softer material, black ceramic typically ranks between 7 and 9, while glass ranks between 5.5 and 6.5. This significant difference in hardness makes black ceramic more resistant to scratches and damage compared to glass. Additionally, black ceramic is known for its excellent resistance to thermal shock, which is another factor contributing to its toughness. For instance, studies have shown that black ceramic can withstand temperatures ranging from -200°C to 1000°C without cracking or shattering, whereas glass is more susceptible to thermal shock and can crack or break at higher temperatures.