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Is it true that magma that is low in silica usually forms light colored rocks?
Wiki User
∙ 8y ago
Magma doesn't produce lava. Magma is lava. Magma is called magma when it is under the ground but when it is released via a volcano it is called lava when it is above ground. The magma or lava can produce dark to light color rocks after it cools depending on the composition of the magma or lava. There is also a range in the color of the lava depending on it composition and temperature also.
Wiki User
∙ 12y ago
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A light colored igneous rock with silica content and explosive eruptions?
Andesite
What rock forms from light-colored lava?
The rock that is formed from light-colored lave is called rhyolite.
Is and igneous rock low in silica dark colored or light colored?
Generally, igneous rocks that are low in silica are dark relative to those that are high in silica. This tendency is largely the result of rocks low in silica having increased iron. Iron minerals tend to adsorb significant amounts of the visible spectrum and hence appear dark. I want to emphasize that this is a general tendency and there are exeptions -- obsidian which is very high in silica is typically a dark to black rock and a special igneous rock call carbonatite is very light in color but has little silica.
What is the explanation for the difference between texture and composition?
Texture is the physical description of the rock. I always think of this as the property you can figure out with your eyes closed (how does the rock "feel"?). Texture types included coarse-grained, fine-grained, glassy, etc. Composition is the chemical description of the rock, what minerals it is made of. For igneous rocks the terms used are felsic (high in silica, usually light colored) to mafic (low in silica, high in iron and magnesium, usually dark colored).
What are the silicates made of?
Silicate minerals are those composed of silicon and oxygen atoms. Some of these minerals are quartz, feldspar, mica and olivine.
What is a light colored rock with a high silica content?
granite
What is the rock that has high silica and light colored other than granite?
quartzite
A light colored igneous rock with silica content and explosive eruptions?
Andesite
Describe the different minerals that determine the color of granite?
Magma that is high in silica usually forms light-colored rock, such as granite. Grantis, however, comes in many shades and colors, from nearly black to light gray, red, and pink. The mineral composition of granite determines its color. ^______^
What is A light colored igneous rock with high silica context explosive eruptions?
majority
What is the difference in silica content and viscosity between light-colored and dark-colored magma?
The lower the viscosity is the hotter the magma is and faster it flows.Higher the viscosity is the cooler it is and slower it flows down.
What forms from light colored lava?
The rock that is formed from light-colored lave is called rhyolite.
What rock forms light colored lava?
The rock that is formed from light-colored lave is called rhyolite.
What rock forms from light-colored lava?
The rock that is formed from light-colored lave is called rhyolite.
What is light colored ofrten intrusive igneous rock containing a high percentage of silica are called?
felsic
Granite jigneous rocks are light-colored lower in density thank basltic rock and high in silica content?
Yes
Is and igneous rock low in silica dark colored or light colored?
Generally, igneous rocks that are low in silica are dark relative to those that are high in silica. This tendency is largely the result of rocks low in silica having increased iron. Iron minerals tend to adsorb significant amounts of the visible spectrum and hence appear dark. I want to emphasize that this is a general tendency and there are exeptions -- obsidian which is very high in silica is typically a dark to black rock and a special igneous rock call carbonatite is very light in color but has little silica.
