What type of structure do minerals have? (Page 119, middle of the page)
A crystal structure
___________________ is the process by when atoms form a crystal structure. Page 123, middle of the page)
crystallization
True or false: Telling one mineral from another is easy? (page 120, top of the page)
False. It is challenging.
The energy that drives the processes of mineral formation goes back to two main parts: ______ and _________. (page 122, paragraph 2)
the sun, plants
What element is used in your cellphone and laptop? (page 127, 1st paragraph)
Tantalum
True or False: A mineral can be liquid? (Page 119, top of the page)
False. Minerals are always solid.
True or false: minerals form from lava and magma? (Page 123, middle of the page)
True
What is the Earth's temperature at 150 KM depth? Page 124, middle of the page)
900 to 1,300 celsius
Some minerals form from materials dissolved in evaporating solutions of water. This is an example of an organic or inorganic process? (page 122, 1st paragraph)
This is an inorganic example.
Tantalum is extracted from what ore? (page 127, paragraph 2)
The _____________ of a mineral is the color of its powder. (page 120)
streak
A change in ________________________ or ______________ can alter a new mineral. page 124)
temperature, pressure
Choose the next question. You will double your points or double your losses.
True or false: Only some minerals can form by inorganic processes? (page 122)
False. All minerals can form by inorganic processes.
Which two countries provided the main sources of tantalum? (page 127)
Australia, Brazil
______________ is the term that describes how light reflects from a mineral's surface. (page 120)
luster
Diamonds are formed at what depth beneath the Earth's surface? page 124
150 KM
Approximately how many minerals have geologist identified? (page 120)
5,000
True or false: Minerals form at or below the Earth's surface? (page 122)
True
As demand increased for tantalum, companies searched for it in more unstable places including one African country. Why was this a problem? (page 127)
Democratic Republic of Congo was in a civil war. The mining was done for quick profit with illegal mining practices.
A mineral can be identified by its properties. How many categories of properties are there and what are their names? (Page 120)
8: color, streak, luster, hardness, density, crystal structure, cleavage or fracture, special
True or false: Some diamonds contain magma? page 124
True. Some diamonds do contain magma.
Why are some minerals limited in quantity? (page 125)
Certain conditions may be limited. It can take a long time to create
Skeletons are made up of what mineral? Page 122
Calcium phosphate
What were the effects of cheap tantalum mining? (page 127)
Destroyed vital wildlife and funded conflict in a war torn country.