Minerals/Ores/Rocks
What are the 3 classifications of rock?
Igneous, sedimentary, metamorphoric
Broken rock fragments
Clasts
Made from ________
cooling lava.
Igneous and sedimentary rocks changed into different rocks.
Metamorphism
Ores
Study of rocks
Petrology
soft, fine texture - splits easily
Shale
small grains of igneous rocks
Phanerite
Marble and quartzite is an example of which type of metamorphic rock?
Nonfoliated
Identification or study of minerals
Mineralogy
How rocks look and feel
Texture
Coarsest, contain chunks of gravel and even boulders
Conglomerate
Very large interlocking crystals
Pegmatite
Formed as a result of converging plates causing pressure.
Regional metamorphism
Term used for "glowing or reflecting light"
Luster/Luminescence
Made of eroded fragments
Sedimentary rocks
Comes from beds of quartz
Sandstone
Brittle, poor conductor of electricity
Nonmetals
Arranged in parallel layers, appear banded
Foliated rock
Contains one or more metal ions and the carbonate ion
Carbonates
Mineral salt compounds
Four steps leading to the formation of sedimentary rock.
1. Erosion
2. Transportation
3. Compaction
4. Cementation
Mineral hardness is measured on the __________.
Mohs scale
Rapid change in condition - secondary to friction (pressure and heat)
Dynamic metamorphism
Huge piles of rubble
Tailings