It occurs as tiny crystals, visible only with a microscope.

Diazepam occurs as solid white or yellow crystals and has a melting point of 131.5 to 134.5 C.

Occurs as well-formed fine sized crystals or massive and granular.

Some materials studied using crystallography, proteins for example, do not occur naturally as crystals.

Lyonsite often occurs as small tabular typically well formed crystals.

The yellow to pink mineral occurs as small, needle-shaped crystals.

It occurs as white crystals that react slowly with water to form hydrogen cyanide.

Tausonite remains an extremely rare mineral in nature, occurring as very tiny crystals.

The mineral rarely occurs as crystals; rather it has either a massive or granular habit.

The samples observed by Aminoff did not occur as crystals.