Igneous Rocks
Describing something dark in color and melts at a higher temperature
What is mafic?
The tendency of a mineral to break on a plane
What is Cleavage?
A type of metamorphism where rock minerals and texture are changed, mainly by heat, due to contact with magma
What is contact metamorphism?
Sediments are laid down and buried over time. This increases the pressure and temperature on the layers of sediment which leads to the physical and chemical processes that transform sediments into sedimentary rocks.
What is lithification?
nonfoliated, coarse, various minerals, pebbles may be distorted or stretched.
What is metaconglomorate?
Lighter in color and melts at lower temperatures
What is fasic
How the mineral reflects light, or how shiny it is.
What is luster?
Formed due to high heat, pressure, or a combination of both. Have changed from their original composition.
What are metamorphic rocks?
The most common form of sedimentary rock, formed from fragmented pieces. They form from the weathering, erosion, deposition, and lithification
What are clastic sedimentary rocks
Has a hardness of at least 6.5, uses in firnace bricks and jewelry, chemical composition of (Fe,Mg)2SiO4
What is Olivine?
Cooled very rapidly and has little to no crystals
What are extrusive rocks?
The color a mineral leaves on a plain white tile.
What is streak?
covers large areas of continental crust typically associated with mountain ranges, usually caused by the collision of two continental plates or island arcs with continental plates producing the extreme compressional forces required for the metamorphic changes
What is regional metamorphism?
These rocks have a crystalline texture where crystals are fine (< 1 mm) to coarse (1mm – 10mm). Chemical sedimentary rocks form from minerals that are evaporated or precipitated from a water solution
What are chemical sedimentary rocks?
The year Harriet Tubman gained her freedom.
What is 1849?
Cooled very slowly and has many crystals
What are intrusive rocks?
The ability of a mineral to be scratched.
What is hardness?
The parallel arrangement of certain mineral grains that gives the rock a striped appearance
What is foliated?
These rocks form from the remains or traces of once living organisms (plant or animal) or material derived from their activities
What are organic sedimentary rocks?
Extrusive, fine, nonvesicular.
What is Basalt?
A felsic, extrusive rock, with a fine texture.
What is Rhyolite?
Something that is naturally occurring, inorganic, solid, has an orderly atomic arrangement, and a definite chemical composition.
What are minerals?
Non foliated, regional or contact metamorphism, fine to coarse, metamorphism of limestone or dolostone.
What is marble?
Clastic, sand, angular fragments
What is breccia?
What is Ms. H's first name?
Kay