W 0.85 3.01. - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Uralite.
"The Student's Elements of Geology"
Sir Charles Lyell
The two divisions are so much allied in chemical composition and crystallographic characters, and blend so completely one into the other in Uralite, that it is perhaps best to unite them in one group.
"The Student's Elements of Geology"
Sir Charles Lyell