Answer:
Examples of everyday materials you encounter as crystals are table salt (sodium chloride or halite crystals), sugar (sucrose), and snowflakes. Many gemstones are crystals, including quartz and diamond. There are also many materials that resemble crystals but are actually polycrystals
Step-by-step explanation:
a crystal is a piece of a homogeneous solid substance having a natural geometrically regular form with symmetrically arranged plane faces.