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Igneous Rock
Igneous rock is formed from cooled magma or lava. The magma turns solid as it cools, and eventually becomes rock. It is sometimes crystallized.
1,149 Questions
How did obsidian make the Toltec powerful?
Obsidian played a significant role in boosting the power of the Toltec civilization. The Toltec warriors crafted weapons made of obsidian, such as swords and spears, which were incredibly sharp and effective in battle. This superior weaponry gave the Toltec armies an advantage, helping them become a dominant force in Mesoamerica. Additionally, obsidian was also used for various practical purposes such as tools, jewelry, and ritual objects, contributing to the economic and cultural influence of the Toltecs.
What happens to a frozen rock?
Rocks cannot freeze.There molecular structure doesnt have an adaption to weather.
AnswerTechnically, rocks cannot freeze. There molecular structure doesn't adapt to weather, except by expansion and contraction. However, moisture inside the molecules of rocks can freeze. This causes even greater expansion and contraction within the rocks' structure, which can result in the rock cracking and even breaking apart, eventually. The scientific term for this effect is known as "weathering", and is highly common among rocky structures in cold and even temperate climates.Is sedimentary rock made from solidified lava?
Rock that is formed from volcanoes are igneous rocks. Sedimentary rocks are formed from other layers of grains that are heaving and over millions of years have enough weight squish the grains into a proper rock. This is why the newest rocks are found at the top of layers.
What type of rock is formed when an igneous rock is cooled very rapidly?
When magma is cooled, it forms an igneous rock. When magma is cooled rapidly, that igneous rock is of the category called "extrusive" or "volcanic". When the magma is cooled very rapidly, the extrusive igneous rock formed will probably be holohyaline (glassy) in texture, or foamy like pumice.
However if you take an igneous rock that is already rock and cool that very rapidly it will probably shatter owing to thermal stress. That might result in the formation of tuff.
How are igneous rocks that have high levels of quartz classified?
A rock is considered igneous if it formed directly from the cooling of molten rock.
The texture of a rock consists of it's grain or mineral crystal size, the arrangement of the grains or crystals, and the degree of uniformity of the grains or crystals. Examples of rock texture would be: * Coarse grained--visible crystals or grains as in granite.
* Fine grained--small grains, invisible to the unaided eye as in shale. * Porphyritic--large visible crystals in a fine grained matrix as in granite porphyry. * Schistose--layers of flattened micaceous minerals such as in mica schist. * Foliated--a metamorphic rock texture of parallel mineral banding as in gneiss. * Homogenous--same grain apperance in all directions as in basalt.
How do you treat wood to be used for a counter-top?
Ahah now this is something I kind of DO ACTUALLY KNOW! My dad did it a few weeks ago because we bought a house with wooden counter tops. They had eventually gone mouldy. My dad sanded them down and bought some waz, and just put the waz on a cloh and rubbed it on the counter tops. It stank for a while but it DID WORK!! Clever, eh. But seriously, the other side was so bad it was beyond repair, so if you are having them near a tap just don't bother. Seriously. Change it to granite. By the way, don't I have good knowledge (i'm only 13!) But don't make that a reason to not trust me, y'know! Sorry, I just wrote, on the previous one, waz. I meant wax. Should have checked my work really!
Explain how to identify a mineral using color luster streak hardness cleavage fracture?
Luster is the light reflection a mineral has, which can be broken down into categories like metallic, silky, and dull. The luster dictates what type of mineral it is.
Aesthetics, building, conveyance, and insulation are what basalt is used for.
Specifically, the rock draws upon ancient use in busts, jewelry, road- and walk-ways, statues and vases. In modern times, it functions as ballast along railroad tracks, filler in concrete, and mix for asphalt. It lends itself most safely as electrical insulators and in brake linings. It may be melted and extruded into fine fibers in the production of pipes and wind power turbine blades. It produces an attractively rugged-looking tile.
When Magma is launched from a volcano forms what type of rock?
A volcano is made of extrusive igneous rock. The specific type of igneous rock will vary from one volcano to another.
A rock made from cooled magma or lava?
Igneous rock is formed from solidified and cooled magma or lava.
What does igneous rock form from?
Igneous rocks are called fire rocks and are formed either underground or above ground. Underground, they are formed when the melted rock, called magma, deep within the earth becomes trapped in small pockets. As these pockets of magma cool slowly underground, the magma becomes igneous rocks.
Igneous rocks are also formed when volcanoes erupt, causing the magma to rise above the earth's surface. When magma appears above the earth, it is called lava. Igneous rocks are formed as the lava cools above ground.
Magma or lava. Classified as mafic or felsic, depending on it's minerology.
Diatomite is a friable light-colored sedimentary rock that is mainly composed of the siliceous skeletal remains of diatoms. It is a very porous rock with fine particle size and low specific gravity. These properties make it useful as a filter media, an absorbent, and as a lightweight filler for rubber, paint, and plastics.
What kind of rocks are around pumice?
Pumice is a very light weight rock - it floats in water. It is part of the ejecta of a composite volcano. It may be found in streams or on coastlines nearby to composite volcanoes. If you wanted to buy a small quantity, then one of the science supply houses would help.
How does magma turn to a igneous rock?
magma pushes its way up through cracks and may become trapped surrounded by solid rocks, the magma cools slowly it may take centuries to harden during this long time the igneous rocks form with large crystals large crystals give rocks a coarse texture
hope this helps with your homework!
i hate science even if I'm kinda good at it!
What is the only kind of rock that can form directly from magma?
By definition. A sedimentary rock is formed from sediments, chemical, organic, or clastic. A metamorphic rock has undergone a change in mineral alignment or mineral composition due to heat and/or pressure. An igneous rock forms from solidification of magma via cooling.
Why are there holes in igneous rock?
The holes represent the bubbles of trapped and expanding gas that was present in the solidifying lava. They were essentially frozen in place.
Theoretically yes, though any given sample of quartz may contain inclusions (non-quartz stuff trapped inside) making it heterogeneous.
What mass of molten rock formed at depth including dissolved gases and crystals?
It is magma, which becomes lava on erupting from a vent or volcano.
How does igneous rock turn into sedimentary rock?
It becomes weathered and eroded to a residue called "regolith", consisting of sand and the clay-forming minerals. These are washed by rivers to the sea or lake beds, settle on the bottom and eventually their own weight compresses the deposit, squeezing out the water. Dissolved minerals precipitate out to cement the grains together, and there we have a new sedimentary rock.
What volcano can erupt with lava ash and rock?
yes,it takes the good particles out of the air so you cant breathe
