[Science] Mineral & Rock Study Guide 11/03/22 Flashcards
Mineral
A naturally occurring, inorganic solid with a definite chemical composition and an orderly arrangement of atoms
Crystal
An orderly arrangement of atoms in a repeating pattern, that forms from mineral grains
Gem
A mineral that has been cut and cleaned, mainly to be sold, and is very valuable as it is rare and beautiful
Ore
A mineral deposit that contains minerals that can be mined and contains useful substances
Principle of the Conservation of Matter
When minerals or rocks become different types of minerals or rocks, no matter is created or destroyed as the previous rock undergoes processes to become different minerals
Rock
A solid mass formed from different minerals and other nonliving substances
Igneous Rock
A rock formed from cooled magma or lava
Magma
Molten rock deep inside the Earth
Lava
When magma reaches Earth’s surface and flows from volcanoes
Intrusive Igneous Rock
Rock that forms from magma below the surface
Extrusive Igneous Rock
Rock that forms from lava that cools on or above Earth’s surface
Gas Bubbles
Rocks or geodes that form from gas bubbles in magma or lava
Igneous Rock Textures
Intrusive Igneous Rock, Extrusive Igneous Rock, & Gas Bubbles
Metamorphic Rock
Rocks that have changed because of changes in temperature and pressure or chemical reactions
Foliated
Produced when mineral grains line up in parallel layers
Nonfoliated
Produced when the mineral grains grow and rearrange, but they don’t form in layers
Sedimentary Rock
Rocks formed when sediments pressed and cemented together, or when minerals form from solutions
Sediments
Particles of rock or minerals ranging in size from clay to giant boulders
Weathering
The chemical or physical breakdown of rocks, solids or minerals at Earth’s surface
Erosion
Bits and pieces of rock being carried from one place to another due to natural causes
Compaction
When minerals, rocks or sediments are pressed and compacted together, forming a new rock
Cementation
When substances that have hardened or crystallized in the spaces between loose sediments
Detrital Sedimentary Rock
Rocks made from broken fragments of other rocks that are compacted and cemented together to form a solid rock
Chemical Sedimentary Rock
Rocks formed when dissolved minerals come out of solution