Minerals
What is the least useful property of a mineral?
color
a common igneous rock that is black and very glossy
What is obsidian?
sedimentary rocks are made from...
Sediments
metamorhpic rocks are made by __________ and ___________
What is heat and pressure?
an igneous rock can become a _____________ rock by heat and pressure
What is metamorphic?
How do you test hardness?
Try to scratch glass with the mineral
What does texture describe in an igneous rock?
Grain size
The sedimentary rock with all of the different grain sizes
Conglomerate
What does intense heat cause?
Recrystalization
a sedimentary rock can become an igneous rock from ____________ and ______________
What is melting and solidification?
What does luster describe?
How are magma and lava different?
Magma is in the earth, lava is on the earth's surface.
The three different types of sedimentary rocks
Clastic, crystalline and bioclastic
What are the two types of metamorpohic rocks?
Foliated and nonfoliated
an igneous rock can become a sedimentary rock by ___________ and ________________
What is weathering and erosion?
What are cleavage and fracture?
How a mineral breaks
How do igneous rocks form?
Melting and solidification
Why are sedimentary rocks the only rocks with fossils?
Metamorphic and igneous rocks form in environments that will destroy fossils
What does intense pressure cause?
Increasing density
A sedimentary rock can become an igneous rock by....
Melting and solidification
How do you find a mineral's true color?
The streak test
What kind of texture does an intrusive rock have?
Coarse
Which sedimentary rock will fizz from HCl
limestone
How does banding look different from mineral alignment?
Banding is color stripes, mineral alignment looks like layers.
What does uplift cause?
creation of sediments through weathering and erosion