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7 Science Ch 4

Minerals

QuestionAnswer
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.
A narrow channel or slab or a mineral that is different from the surrounding rock is called a... vein.
Magma that cools very slowly deep beneath the surface forms minerals with what type of crystals? large
A rock that contains a metal or other useful minerals that can be mined and sold at a profit is called an... ore
A hard, colorful mineral that has a brilliant or glassy luster is a... gemstone.
Which is NOT a factor that affects the size of mineral crystals formed in magma - chemical composition, rate of cooling, fluorescence? fluorescence
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
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... crystal.
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.
What is the hardest known mineral? diamond
Which term refers to anyone who searches for an ore deposit? prospector
Most minerals do NOT split apart evenly. Instead, they have a characteristic type of... fracture.
What crystal shape does halite have? cubic
Miners use earthmoving equipment to dig a huge hole in the process of... open pit mining.
What type of mine often has a network of tunnels that extend deep into the ground, following the veins of ore? shaft mine
If the cooling rate is slow, the crystals can become... large.
The term used to describe how light is reflected from a mineral's surface is... luster.
The softest mineral on the Mohs hardess scale is... talc.
Which of the following is NOT one of the six types of crystal shapes - triclinic, tetragonal, metallic? metallic
You have a different rock with a volume of 10cm3 and a mass of 60g. What is its density? Density=Mass/Volume, 60g/10cm3 = 6g/cm3
Crystal size depends on several factors. Which is the most important factor? rate of cooling
Minerals come from _________ compounds. inorganic
An ore that is near the surface is removed by _______ mining. strip
The process of ________ involved mixing an ore with other substances and heating the mixture to a very high temperature. smelting
A mineral that does not split apart evenly has the property of _________. fracture.
The faster magma cools, the ______ the mineral crystals form. smaller
Created by: 7thgrade
 

 



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