Assertion: stylus | /r/MadeOf | diamond
Facets:
Source sentences:
text: Since styluses are made of sapphire or diamond, such hard materials can scratch the surface of the sample surface.
text: Most styluses are made of either diamond or sapphire, two of the hardest natural materials on the planet, so they’re not something you’re going to have to think about replacing all too frequently.
text: Since a stylus is made of diamond, it’s often more attractive to clean the needle than to replace it.