Noun
One who describes crystals, or the manner of their formation; one versed in crystallography.
Source: Webster's dictionaryWhile trying to find a topic for his doctorate, he first went to Naples to study under crystallographer Arcangelo Scacchi, who was senile by that time. Source: Internet
In still other cases, the crystallographer may detect that the covalent structure deduced for the molecule was incorrect, or changed. Source: Internet
The κ rotation allows for convenient mounting of the crystal, since the arm in which the crystal is mounted may be swung out towards the crystallographer. Source: Internet