Carbon in the organic world, where it plays such an important part, is non-crystalline.
It occurs both in a crystalline and amorphous form, the latter, or non-crystalline kind, being extensively used for lead-pencils.
Small globules appear (globulites), spherical and non-crystalline (so far as can be ascertained).
The plates do become sulphated, but the sulphate remains in the porous, non-crystalline state in which it forms.
Its characteristic flocculent, non-crystalline nature is plainly evident when examined under the microscope.
crystalline crys·tal·line (krĭs'tə-lĭn, -līn', -lēn')
Being, relating to, or composed of crystal or crystals.
Resembling crystal, as in transparency or distinctness of structure or outline.