GEO 1111 Lecture Notes - Lecture 6: Malachite, Chemical Formula, Magnetite

• School: University of Ottawa
• Department: Geology
• Course: GEO 1111
• Professor: David Schneider

Document Summary

Crust rock - mineral: lithosphere= crust+ uppermost mantle or tectonic plates or rocks, elements combine into minerals, and minerals combine into rocks. Different rocks make up different earth layers: lithosphere is enriched in elements: si, al, (k, na, ca) Rocks termed felsic or acid (silicic, sialic: asthenosphere and mesosphere are enriched in elements: mg, fe. Rocks termed (ultra-) mafic or basic: different colors are different minerals. What is a mineral: minerals have a specialized geologic definition. They are naturally occurring, (mostly) inorganic crystalline solids formed by geologic processes (not man-made) and with a definite chemical composition. (chemical formula) Malachite is a type of copper ore (cu2 [co3 ][oh]2 ); it contains cu plus other elements. Copper from malachite or other copper ore minerals can be used to make: what"s in the name? copper pots. Rarely it gives clues regarding mineral properties (it does for magnetite). Siliminate named after scientist; olivine green color; illite illinois.