Reading...
Play button
Play button
Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
27 Cards in this Set
- Front
- Back
|
Naturally Occuring
|
To be classified as a mineral, a substance must be formed by process in the natural world.
|
|
|
Definite Chemical Composition
|
A range of compositions. This means that a mineral always contains certain elements in definite proportions.
|
|
|
Cleavage
|
A mineral that splits easily along flat surfaces.
|
|
|
Fracture
|
Describes how a mineral looks when it breaks apart in an irregular way.
|
|
|
Mohs Hardness scale
|
This scale ranks ten minerals from softest to hardest.
|
|
|
How minerals form from a solution
|
Minerals can form this way underground and in bodies of water on Earth's surface.
|
|
|
How minerals form from magma and lava cooling
|
Minerals form as hot magma cools inside Earth, or as lava hardens on the surface. When these liquids cool to a solid state, they form chrystals
|
|
|
Crystalization
|
The process by which atoms are arranged to form a material with a crystal structure.
|
|
|
Geode
|
A hollow rock inside which mineral crystals have formed
|
|
|
Vein
|
A narrow deposit of a mineral that is sharply different from the surrounding rock
|
|
|
Solution
|
A mixture in which one substance is disolved in another
|
|
|
Prospecting
|
anyone who searches for an ore deposit.
|
|
|
Smelting
|
An ore is mixed with other substances and then melted to to seprate the useful metal from other elements the ore contains
|
|
|
Alloy
|
A solid mixture of two or more elements, at least one of which is a metal
|
|
|
gemstone
|
Is a hard, colorful mineral that has a brilliant or glassy luster.
|
|
|
ORE
|
A rock that contains a metal or other useful minerals that can be mined and sold at profit.
|
|
|
Why are metals useful
|
Metals can be stretched into wire and flattened into sheets.
|
|
|
Talc is ground up to make what?
|
talcum
|
|
|
Calcite is used in making what?
|
Instruments such as microscopes
|
|
|
Quartz is used in making...???
|
found in sand making of glass
|
|
|
Mineral can form 1
|
cooling of magma or lava under the earths surface or on the earths surface
|
|
|
Mineral can form 2
|
Minerals separating from (leaving) a solution * evaporation of water leaving minerals behind.* * minerals dropping out of a hot water solution when the solution cools
|
|
|
question:23
pyrite is called fools gold because it looks like gold. Which properties can be used to tell gold and pyrite apart? |
a.density
b.hardness c.streak d.all of the above |
|
|
halite is formed from
|
solutions
|
|
|
softest mineral?
|
talc
|
|
|
hardest mineral
|
diamond
|
|
|
can scratch with your fingernail
|
gypsum
|
