This has been done for hemoglobins of the blood by Reichert and Brown, who have shown by Crystallographic measurements that the hemoglobins of any species are definite substances for that species....
"Manhood of Humanity."
Alfred Korzybski
But the formation of the halo is not, at least in its earlier stages, attended by destruction of the Crystallographic and optical properties of the medium.
"The Birth-Time of the World and Other Scientific Essays"
J. (John) Joly
These important and involved relations can only be explained by very accurate Crystallographic and chemical investigations.
"COSMOS: A Sketch of the Physical Description of the Universe, Vol. 1"
Alexander von Humboldt