rock-forming

This graphic model describes the difference between nine common igneous rocks based on texture of mineral grains, temperature of crystallization, relative amounts of typical rock-forming elements, and relative proportions of silica and some common minerals.

Igneous rock 2007

Dr. Guthrie has also shown that eutexia may reasonably be supposed to have played an important part in the production and separation of many rock-forming minerals.

Scientific American Supplement, No. 508, September 26, 1885 Various

This course aims to give a full knowledge of the determination of the common rock-forming minerals and rocks in thin sections under the microscope.

The University of Virginia Record 1919

This course aims to give a full knowledge of the determination of the common rock-forming minerals and rocks in thin sections under the microscope.

The University of Virginia Record 1919

Special emphasis is given to the study of common rock-forming minerals and rocks, building stones and ores.

The University of Virginia Record 1919

Special emphasis is given to the study of common rock-forming minerals and rocks, building stones and ores.

The University of Virginia Record 1919

Special emphasis is given to the study of common rock-forming minerals and rocks, building stones and ores.

The University of Virginia Record 1918

This course aims to give a full knowledge of the determination of the common rock-forming minerals and rocks in thin sections under the microscope.

The University of Virginia Record 1918

This course aims to give a full knowledge of the determination of the common rock-forming minerals and rocks in thin sections under the microscope.

The University of Virginia Record 1917

Special emphasis is given to the study of common rock-forming minerals and rocks, building stones and ores.

The University of Virginia Record 1917