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Rocks and Minerals
A rock is a compound composed of two or more minerals. It is classified into three types based on how it is formed – igneous, sedimentary and metamorphic. Meanwhile, a mineral is grouped in classes based on its chemical properties.
500 Questions
Does calcite have metallic luster?
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No. It is transparent and does not contain metals.
What does rock contain?
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Molten rock contains liquified minerals, some solid mineral grains, and dissolved gasses.
Why pyrite is important?
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Pyrite, iron sulfide is a common mineral in many rocks. Pyrite is the most important sulfur-containing mineral.
What is a mineral pattern?
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The repeating patterns are the latticework of the crystalline structure.
Where is pyrite located?
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'Pyrite' is the name of many minerals found on Earth. The most common and famous is 'Iron Pyrites', or 'Fool's Gold', because, to the untrained eye, it looks like gold. However, its appearance is slightly cuboid, where as true gold is more rounded in appearance.
What kind of rocks are in Death Valley?
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Metamorphic, along with volcanic and plutonic igneous rocks.
Can diamonds be found in Texas?
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Texas is not known for its diamonds.
You can, however, find diamonds in the Crater of Diamonds state park in nearby Arkansas. Any diamond you find there, you can keep.
What rocks are found in rivers?
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A river rock could be any of the three rocks types or any combination of the three.
What minerals are found in Alaska?
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Alaska's most valuable mineral product is gold, according to the State of Alaska. Following gold, the next most valuable product is zinc. Fuel products are the state's biggest money makers, but geologists do not consider coal or petroleum to be minerals.
What types of rocks did they use to make mount Rushmore?
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Melted Cheese, this helps to cool the volcanic activity located at the bottom of Mount Rushmore. Hope this helps
What is the Color of a mineral when crushed to a powder?
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Different minerals have different colors, actually.
Why is granite expensive?
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Granite is expensive due to mining operational costs, fabrication costs, and shipping costs.
Why is white rock when exposed turns reddish brown?
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I really don't know. That's why I searched it. I'm sorry to disturb you just to open this one. :/
Is a boulder a small rock?
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No, a large stone is a boulder
There is a defined order of particles from sand to boulders:
United States Standard
Size range
(metric)
Size range
(app. inches)
Aggregate name
(Wentworth Class)
Other names
256 mm <
10.1 in<
Boulder
64-256 mm
2.5-10.1 in
Cobble
32-64 mm
1.26-2.5 in
Very coarse gravel
Pebble
16-32 mm
0.63-1.26 in
Coarse gravel
Pebble
8-16 mm
0.31-0.63 in
Medium gravel
Pebble
4-8 mm
0.157-0.31 in
Fine gravel
Pebble
2-4 mm
0.079-0.157 in
Very fine gravel
Granule
1-2 mm
0.039-0.079 in
Very coarse sand
½-1 mm
0.020-0.039 in
Coarse sand
¼-½ mm
0.010-0.020 in
Medium sand
125-250 µm
0.0049-0.010 in
Fine sand
62.5-125 µm
0.0025-0.0049 in
Very fine sand
3.90625-62.5 µm
0.00015-0.0025 in
Silt
Mud
< 3.90625 µm
< 0.00015 in
Clay
Mud
< 1 µm
< 0.000039 in
Colloid
Mud
Does the composition of a sedimentary rock depend upon the composition of the rocks and the living things its sediments came from?
Asked by Wiki User
It is true that the composition of a sedimentary rock depends upon the composition of the rocks and living things its sediments come from. Sedimentary rocks form through lithification.
What is these is a mineral used in fertilizers?
Asked by Wiki User
Several different ones. Calcite is used as a fertiliser under the name "lime". Various sulphate and phosphate minerals are also used to make fertiliser, such as gypsum (calcium sulphate dihydrite) and fluorapatite (calcium fluorophosphate).
How would you test a mineral to find out what it is?
Asked by Wiki User
Begin by taking a look at the mineral's color, Examine the mineral and take note of its surface features,Get out the materials needed for the hardness test (see Things You'll need), The number is the hardness, followed by the characteristics of a mineral of that hardness and an example, Next find out your mineral's luster,Now for the streak test, You can also identify a mineral by the way it breaks. If it breaks along a smooth, flat surface (such as mica), it has cleavage. If your mineral breaks along rough, jagged surfaces, it has fracture. Thats all you need to do.
