Rocks+and+Minerals

= **Chapter 9 outline** =





media type="custom" key="10896806" Naica Crystal Cave Mexico - Gypsum

media type="custom" key="10609038" Rocks and Minerals

Click here to download the document OR study from the words below. Physical property - any characteristic of a material that you can observe without changing the identity of the material

detrital rock - made of grains of minerals or other rocks that have moved and been deposited in layers by ice, water, gravity or wind

fossils - the remains or trace of a once living plant or animal or dinosaur

intrusive - describes a type of igneous that generally contains large crystals and forms when magma cools slowly beneath Earth's surface

foliated - describes metamorphic rocks with visible layers of minerals

sedimentary rock - a type of rock made from pieces of other rock, dissolved minerals or plant and animal matter

chemical rock - form when seawater, loaded with dissolved minerals evaporates

ore - material that contains enough of a useful metal that it can be mined and solid at a profit

rock - solid, inorganic material that is usually made of two or more minerals

non-foliated - describes metamorphic rock that lack distinct layers or bands

extrusive - igneous rock that have small or no crystals and forms when melted rock cools quickly on Earth's surface

crystal - solid material with atoms arranged in a repeating pattern

pressure - force applied over a given area

rock cycle - diagram that shows the slow continuous process of rocks changing from one type to another

mineral - inorganic, solid material found in nature that always has the same chemical makeup and atoms arranged in an orderly pattern

lava - molten rock material that exists at or about earth's surface

<span style="color: black; font-family: 'Arial Black',Gadget,sans-serif; font-size: 130%;">metamorphic rock - new rock that forms when existing rock is heated or squeezed

<span style="color: black; font-family: 'Arial Black',Gadget,sans-serif; font-size: 130%;">gem - rare, valuable mineral that can be cut and polished

<span style="color: black; font-family: 'Arial Black',Gadget,sans-serif; font-size: 130%;">organic- form over millions of years as living matter dies, piles up and then is compressed into rock

<span style="color: black; font-family: 'Arial Black',Gadget,sans-serif; font-size: 130%;">igneous - intrusive or extrusive rock from inside Earth cools and hardens