Minerals
Which Class of minerals makes up most of the rocks in the earth's crust?
Silicate
A scientist who studies the classification and origin of all types of rocks is called a ____________
Petrologist
What is a Mixture?
two or more substances physically combined.
A geologist who studies and identifies mineral samples is called a ___________-
mineralogist
Which common metal was worth more per ounce than gold before scientists found a practical means of extracting it from the ore?
aluminum
Mineral salts are also known as...
Halides
A rock that has changed due to heat or pressure is a __________ Rock
Metamorphic
What is Luster?
the amount and quality of the light reflected from a mineral's surface
The way that a mineral reflects light from its surface is its
Luster
A mineral composed of more that one chemical would be classified as a __________ mineral
compound
A mineral composed of more than one chemical element would be classified as a _____________ mineral.
Compound
Rocks formed from bits and pieces of eroded rocks are called ______________ rocks.
Sedimentary
What is Streak?
the color of a minerals powder
Minerals, which may have existed at or near the surface before the flood, now can be reached only by
Mining
The system used to rate a mineral's hardness is called ______________
Mohs Scale
A mineral rated as 1 on the hardness scale is _____________
Soft
Which of the following tests most likely could be used to identify a rock?
Magnetism
What is fracture?
How mica can be broken into flat sheets?
Rocks that formed when molten rock cooled and hardened are called what kind of rocks
Igneous
Which class of minerals makes up most of the rocks in the earth's crust?
Oxides
Who Studies Minerals
Minerologist
Fossils are usually found in ________________ Rock.
Sedimentary
What is native mineral?
a mineral with only one kind of atom
The way that a mineral breaks into sheets is called its ___________, the way that it breaks into uneven surfaces is known as its ____________
Cleavage/fracture
Oxides are compounds that consist of ___________ and another element, usually a metal
Oxygen