Jean-Baptiste Louis Romé de L'Isle 1736 - 1790
- occupation:
- Crystallographer, Mineralogist
- Nationality:
- French
- born in:
- Gray, Haute-Saone, Franche-Comte, France
Secratary to the army, then mineralogist, published "Essal de Cristallographic" (1772), and "Cristallographie" (1783) on the categorisation and shape of crystals. Confirmed Steno's theory on the angles of crystal's planes. Considered to be one of the creators of modern crystallography;