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Why do minerals change composition as they undergo metamorphism?
The minerals in the rock have been realigned into parallel bands in response to pressures exerted on the rock from a particular direction. The banding forms perpendicularly to the direction of the force.
Which mineral property describes how minerals interact with light?
Luster describes how a mineral reflects light
What is the difference between foliated and nonfoliated metamorphic rocks?
Foliation is a geologic term that is used to describe the banded or layered appearance of metamorphic rocks.Foliated metamorphic rocks such as gneiss display banding and regrouping of its mineral constituents as a result of enormous pressures and heat. The banding forms perpendicularly to the direction of pressure. The pressure is usually related to tectonic plate collisions. Schist is another type of foliated rock that exhibits thin layering of micaceous minerals, once again due to pressure and heat. The difference between these two foliated rocks lies in the rock from which they were derived (protolith) and their degree of metamorphism.Non-foliated metamorphic rocks such as quartzite and marble do not display the banding or layering that are present in foliated rocks. This may be partially due to the high relative percentage of one individual mineral in the parent rock, as well as to the metamorphic variables of heat and pressure.'Foliated' is a term used to describe metamorphic rocks whose grains are arranged in parallel layers.
Contrast foliated and nonfoliated metamorphic rocks?
Foaliated rock can form in one or two ways. Extreme pressure may cause the mineral crystals in the rock to realign or regrow to form parallel bands. Foaliation also occurs as minerals that have different compositions separate to produce a series of alternation dark and light bands. Most nonfoliated metamorphic rocks share at least one or two main characteristics. First, the original rock that is metamorphosed may contain grains of only one mineral or contains very small amounts of other minerals.
What is the difference between heavy and light mineral oil?
Heavy mineral oil is a more viscous substance, light mineral oil is less viscous. Therapeutically, Light Mineral Oil is used as an emollient for the skin, while Heavy Mineral Oil is used as a Cathartic/Laxative for the bowel.
What rock has parallel bands of dark and light mineral grains?
It is a sedimentary rock
How could you distinguish pumice and granite?
Granite is a dense, non-porous rock with visible mineral grains. Pumice is a light rock filled with holes left by gas bubbles and generally no visible grains.
What is a way a mineral appears?
Minerals appear in many different ways. Opaque minerals do not allow light to pass through them. Isotropic minerals allow light to pass through it the same way no matter how the mineral is held. Anisotropic minerals reflects light depending up how the grains lay.
If a rock has bands of light and dark layers it is?
It could be foliated metamorphic rock or sedimentary rock, depending on its mineral makeup and method of formation.
A bands are dark bands?
Yes, in striated muscle you can think of the "A" bands as the dArk bands and the "I" bands as the lIght bands.
Why are mineral bands in metamorphic rocks light and dark colored?
Mineral bands are light and dark colored because they are different types of rock. In the rock cycle different types of rock can stack on top of each other, this can be subducted into the earth near the Mantle where there is enough pressure the rocks can start to melt and change. Because different types of rock metamorphose into different rocks you can have many layers in a type of rock. These can be light or dark colors depending on the rock.
Why do minerals change composition as they undergo metamorphism?
The minerals in the rock have been realigned into parallel bands in response to pressures exerted on the rock from a particular direction. The banding forms perpendicularly to the direction of the force.
What type of rock texture results when extreme pressure cause mineral in metamorphic rock to realign or when minerals separate out into dark and light bands?
I do believe that the answer is "foliated". However I am not positive, but I do know that... Banding is another word for foliation, which is the grouping of certain minerals with the rock forming parallel bands that are perpendicular to the pressure that causes its formation. Banding of different minerals give some metamorphic rocks a striped appearance, involving the segregation of light and dark minerals into layers. Good luck with your question and I hope that this information has helped.
Do smooth muscle have alternating dark and and light bands on them?
Yes, smooth muscle has alternating dark and light bands known as the A and I bands, respectively.
If light bounces off A mineral it has?
If light bounces off a mineral it has luster.
Monochromatic light passes through 2 parallel slits forms an interference pattern on screen As the distance between the 2 slits is decreased the distance between light bands in the pattern?
The light will be diffracted and an interference pattern of alternate dark and light areas will occur on the wall.
Many stars together create cloudy bands of light. What is the prepositional phrase?
create cloudy bands of light
