Even accounting for that unlikely possibility, real sapphire is 9 and most gorilla glass is at least around 7 or higher which is quartz (with the latest version approaching sapphire). A 6 is pretty low. For comparison, common glass is around a 5.5 and tooth enamel is a 5. I'm not saying this test is accurate, but if it is, yay we're a step above tooth enamel and glass made in the 1800s. Seems rather incredulous so color me skeptical.