Rocks Flashcards
1
Q
Rock definition
A
A rock is a naturally occurring, multi-granular aggregate of minerals, and consists of fragments of one or more kinds of mineral.
2
Q
What are the three different types of rocks?
A
- Igneous
- Sedimentary
- Metamorphic
3
Q
Igneous Rock
A
Rocks that from by crystallization of melted rock material known as magma
-Consist of interlocking crystals of various minerals.
4
Q
Sedimentary Rock
A
Rocks formed at earths surface by lithification of weathering products of pre-existing igneous, metamorphic or sedimentary rocks.
5
Q
Metamorphic Rock
A
Rocks that were originally igneous or sedimentary but as a direct result of heat and pressure have changed in texture or mineral composition or both. Not undergone melting.
6
Q
Monomineralic rocls
A
Consists of aggregates of a single mineral (Quartzite-Quartz)
