2 pt 3 pt 4 pt 5pt 1 pt 2 pt 3 pt 4 pt 5 pt 1 pt 2pt 3 pt 4pt 5 pt 1pt 2pt 3 pt 4 pt 5 pt 1 pt 2 pt 3 pt 4pt 5 pt 1pt 4.1 Properties Of Minerals p How Minerals Form p Using Mineral Resources p Using Mineral Resources 4.3 Using Mineral Resource
A mineral is inorganic, which means that it contains ____.
no materials that were once part of living things.
The color of a mineral’s powder is called its ___________
streak.
If you broke a mineral into tiny pieces, each piece would ___.
still show the same crystal structure.
An example of a mineral made up of a pure element is ____.
copper.
The repeating pattern of a mineral’s particles forms a solid called a(n) __.
crystal.
A narrow channel or slab of a mineral that is different from the surrounding rock is called a ______.
Veins.
Magma that cools very slowly deep beneath the surface forms minerals with what size of crystals?
large
Minerals can form deep inside Earth’s crust by ___________.
crystallization of melted materials.
Minerals may form on Earth’s surface when solutions _______.
evaporate.
Halite is a mineral formed by _____.
evaporate.
A rock that contains a metal or other useful mineral that can be mined and sold at a profit is called a(n) _______.
ore.
A hard, colorful mineral that has a brilliant or glassy luster is a(n) ____.
gemstone.
Which type of mine would be used to remove ore deposits in a vein?
shaft mine.
After miners remove ore from a mine, what process removes the metal from the ore?
smelting
Steelmakers add other elements to iron to make_________with special properties?.
alloys
What do metal tools and machinery, the metal filament in a light bulb, and steel girders used to frame an office building all have in common?
They began as minerals inside Earth’s crust.
Which term refers to anyone who searches for an ore deposit?
prospector
Miners use earthmoving equipment to dig a huge hole in the process of__.
open pit mining.
Which type of mine often has a network of tunnels that extend deep into the ground, following the veins of ore?
shaft mine
What is a solid mixture of two or more elements, at least one of which is a metal?
alloy
When steelmakers add chromium and nickel to iron, the result is_____.
rust-resistant steel.
What substance that is rich in carbon is mixed with iron ore in the process of smelting?
coke.
An ore that is near the surface is removed by _____ mining.
Strip
The process of ____ involves mixing an ore with other substances and heating the mixture to a very high temperature.
smelting
The mineral___, which is found in sand, is used to make glass and electronic equipment.
quartz