Earth system and tectonics (week 1) Flashcards
1
Q
minerals
A
basic building blocks of geomaterials
naturally occurring, inorganic, definite chem composition
2
Q
rock definition
A
solid mass of minerals
3
Q
elements
A
basic building blocks of minerals
4
Q
main minerals in earths crust
A
silicon, oxygen, aluminum
5
Q
structure
A
3D covalent(diamond), 2D (graphene) sheets (graphite)
6
Q
tetrahedron (structure)
A
basic 3D mineral form-key to visible crystal form
7
Q
polymorph (structure)
A
more than one geometric arrangement
8
Q
crystal habit (shape)
A
external expression of the orderly internal arrangement
9
Q
cubic arrangement
A
calcite, halite, fluorite
10
Q
sheet minerals
A
mica, biotite
