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Properties
How Minerals Form
Using Mineral Resources
Vocabulary
Random
100
A substance is ____________________ if it did not arise from materials that were once part of a living thing.
INORGANIC
100
What is a narrow channel or slab of a mineral that is sharply different from the surrounding rock?
VEIN
100
Steel is an example of a useful __________________.
ALLOY
100
The property of ______________________ is the mass of the mineral sample per unit volume.
DENSITY
100
What is the formula for density?
Density = Mass divided by Volume
200
Earthy, shiny, waxy, metallic, and pearly are terms used to describe a mineral's ___________________.
LUSTER
200
Minerals form when a hot water solution cools and the minerals ___________________.
CRYSTALLIZE
200
Hard, colorful minerals that have a brilliant or glassy luster are called _______________________.
GEMSTONES
200
A(n) _________________ mine is used when ore deposits occur in veins.
SHAFT
200
All minerals must have what FIVE characteristics?
1) Naturally Occurring 2) Solid 3) Inorganic 4) Crystal Structure 5) Definite Chemical Composition
300
Fredrich Mohs invented a system to describe and compare the ________________ of minerals.
HARDNESS
300
The size of a mineral's crystals depends on which of the following? A) the rate of cooling of the magma or solution from which the mineral formed B) the smelting process in which the magma formed C) the mineral's crystal group D) the solution from which the mineral formed
A) the rate of cooling of the magma or solution from which the mineral formed
300
In a process called ___________________, an ore is melted to separate the useful metal from other elements in the ore.
SMELTING
300
Table salt is made from deposits of the mineral _______________________.
HALITE
300
What are the SIX types of crystal shapes?
1) cubic 2) hexagonal 3) tetragonal 4) orthorhombic 4) monoclinic 6) triclinic
400
A mineral that splits apart easily along flat surfaces has the property called ____________________.
CLEAVAGE
400
The mineral ___________ is used in making glass.
QUARTZ
400
A rock that contains a metal or economically useful material is called a(n) ________________________.
ORE
400
The ___________ of a mineral is the color of its powder.
STREAK
400
The purpose of heating iron ore to a very high temperature in a blast furnace is: A) to eliminate one kind of iron from the iron ore B) to heat the iron so that it separates from other elements in the ore C) to add hematite to the final product D) to cool down the hot furnace
B) to heat the iron so that it separates from other elements in the ore
500
Color alone may NOT be used to identify a mineral because ______________________________. A) luster usually hides a mineral's true color B) color and streak are never the same color C) the color of most minerals is hidden by veins D) only a few minerals always have their own characteristic color.
D) only a few minerals always have their own characteristic color.
500
The vast majority of minerals are __________________.
COMPOUNDS
500
A _____________ is anyone who searches for an ore deposit.
PROSPECTOR
500
________that cools deep underground produces large crystals.
MAGMA
500
What mineral has a rating of 10 on the Mohs hardness scale?
DIAMOND