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Inorganic, solid materials found in nature that are not formed from plants or animals.
What are MINERALS?
These rocks do not have visible layers.
What is NONFOLIATED?
Usually made of two or more minerals.
What are ROCKS?
What is THE ROCK CYCLE?
Solid materials that are arranged in a pattern of repeating atoms.
What are CRYSTALS?
Minerals that form slowly with lots of room will have this type of crystal.
What is LARGE?
Minerals that are rare and can be cut and polished, giving them a beautiful appearance.
What are GEMS?
Minerals that split into pieces with smooth, regular planes that reflect light are said to have this.
What is CLEAVAGE?
This contains enough of a useful substance that it can be sold for a profit.
What is an ORE?
Minerals that break into jagged or rough edges are said to have this.
What is FRACTURE?
When you scrape a mineral across a white tile it produces a colored powder that may or may not be the same color as the mineral. This colored powder is the ____________________ of the mineral.
What is the STREAK?
This describes how the light reflects from a mineral's surface.
What is LUSTER?
These form when melted rock material from the inside of the earth cools and hardens.
What is IGNEOUS ROCKS?
This is the hardest mineral with a Mohs Scale of Hardness of 10.
What is a DIAMOND?
THIS COMPARES THE WEIGHT OF A MINERAL WITH THE WEIGHT OF AN EQUAL VOLUME OF WATER.
What is SPECIFIC GRAVITY?
When melted rock material cools on the surface of the earth, this forms.
What is EXTRUSIVE ROCK?
Diamonds are most often found in this type of hardened magma.
What is KIMBERLITE?
This forms when melted rock material cools below the earth's surface.
What is INTRUSIVE ROCK?
When an ore is refined, it means it is _______________.
What is PURIFIED?
This is formed when sediment collects in layers and is squeezed by pressure.
What is SEDIMENTARY ROCK?
Light-colored igneous rocks are known as this.
What is GRANITIC ROCK.
This forms when existing rocks experience pressure and heat but not so it melts.
What is METAMORPHIC ROCK?
Dark-colored igneous rocks are this.
What is BASALTIC?
This is a type of rock that has visible layers.
What is FOLIATED?
These are made of grains of minerals or other rocks that have moved and been deposited in layers by water, ice, gravity or wind.
What is DETRITAL ROCKS?