Earth Science Chapter 9 (Minerals And Ores) Flashcards
At one time aluminum was more valuable than…
Gold
Why is liquid water not a mineral but ice is a mineral?
Liquid water is not a solid.
Minerals must be solid.
Name 4 Characteristics of a Mineral:
- Naturally occurring
- Inorganic
- Crystalline solid
4.
Definite Chemical Composition
The mineral cinnabar, also called mercury sulfide, is an important source or ore of…
Mercury
A mineral with only one kind of atom is a…
Native mineral
What is the difference between compounds and native minerals?
Compounds are minerals that are composed of two or more elements. Native minerals have only one element.
The following are native minerals:
Sulfur, platinum, gold, diamond, and silver
Minerals are considered matter because they have mass and take up…
Space
Why is seawater a mixture?
Because seawater has different ratios of materials.
Two or more substances physically combined, not chemically bonded are called a…
Mixture
A geologist who studies and identifies mineral samples, is called a…
Mineralogists
The test that provides the best example of a mineral’s color is the…
Streak Test
Some minerals are too hard to leave a… ? …on a streak plate.
Streak
A mineral’s crystalline classification deals mostly with its…
Shape
The color of a mineral’s powder is called its…
Streak
A mineral’s streak is more… ? …than it’s apparent color.
Reliable
The process by which a crystal grows is called…
Accretion
What scale measures hardness of a mineral?
Mohs
Minerals which are very… ? …are a 1 on the hardness scale and those which are hard are a 10.
Soft
The ratio of the density of a specimen to the density of water at 4 degrees Celsius is called…
Specific gravity
When you conduct an acid test on a mineral sample, you are watching for…
Gas bubbles
A mineral is a good resource even if it is only…
Beautiful
The types of mineral that are most likely found in placer deposits are…
Native minerals
The best conductor of electricity is…
Silver
What property of copper makes it a good material for plumbing pipes?
When copper tarnishes, a tough surface layer forms. This layer seals out oxygen and resists further corrosion.
Diamond is composed of…
Carbon
A carat is a unit of…
Mass
What is the most abundant class or family of minerals?
Silicates
Any mineral that is made of oxygen is called an…
Oxide
Fool’s gold, a mineral of iron and sulfur is classified as a…
Sulfides
Which method is the most common for obtaining minerals and ores?
Mining
Obsidian, a mineral of volcanic origin, breaks in smooth curved surfaces. What type of fracture does it have?
Conchoidal
Are you ready for the test?
Yes
