Methamphetamine usually comes in the form of a crystalline white powder that is odourless, bitter-tasting and dissolves easily in water or alcohol.
Other colours of powder have been observed, including brown, yellow-grey, orange and even pink. It can also be compressed into pill form.
As covered earlier, it can be snorted, smoked or injected.
Crystal meth comes in clear chunky crystals resembling ice and is most commonly smoked.