Glass is generally considered to be stronger than ceramic, but this can vary depending on the specific types of glass and ceramic being compared. In general, glass has a higher tensile strength, which is the ability of a material to resist breaking under tension. For instance, borosilicate glass, often used in laboratory glassware, has a tensile strength of around 100 MPa. In contrast, ceramics like porcelain or stoneware have tensile strengths that can range from 50 to 200 MPa. However, ceramics can be much harder than glass, which is measured by the Mohs scale of hardness. For example, quartz, a type of glass, has a Mohs hardness of 7, while ceramic materials like sapphire can have a hardness of 9. This hardness makes ceramics more resistant to scratching and wear. The strength of a material also depends on factors such as the manufacturing process, composition, and the presence of any defects. For instance, ceramic tiles are often stronger than glass tiles due to their denser structure and the absence of air pockets. In summary, while glass typically has a higher tensile strength, ceramics can be harder and more resistant to scratching, making the comparison between the two materials complex and context-dependent.