0
What else can I help you with?
What minerals are found in andesitic rocks?
Andesitic rocks typically contain minerals such as plagioclase feldspar, amphibole, pyroxene, and biotite. These minerals form as a result of the cooling and solidification of magma with intermediate silica content.
What element is principally responsible for making olivine pyroxene amphibole and biotite dark?
Iron is principally responsible for making olivine, pyroxene, amphibole, and biotite dark in color. Iron impurities in these minerals can give them a dark green, black, or brown coloration.
What minerals does the rock pumice have?
There usually are no minerals in pumice. it is composed of glass.
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 the color of amphibolite?
Amphibolite is the metamorphic form of amphibole, also known as hornblende. Amphibolite usually has a black and white, lightly foliated appearance.
Mineral crystals of quartzbiotite micaand amphibole are produced primarily by the what?
Mineral crystals of quartz, biotite mica, and amphibole are primarily produced by the process of crystallization from molten rock or magma. As magma cools, different minerals crystallize at varying temperatures, leading to the formation of these minerals. Additionally, they can also form through metamorphic processes or in sedimentary environments under specific conditions.
What is Obsidians' composition?
potassiun feldspar, quartz, plagioclase feldspar,biotite, and amphibole.
What minerals are found in andesitic rocks?
Andesitic rocks typically contain minerals such as plagioclase feldspar, amphibole, pyroxene, and biotite. These minerals form as a result of the cooling and solidification of magma with intermediate silica content.
What element is principally responsible for making olivine pyroxene amphibole and biotite dark?
Iron is principally responsible for making olivine, pyroxene, amphibole, and biotite dark in color. Iron impurities in these minerals can give them a dark green, black, or brown coloration.
What contains moderate amount of biotite and amphibole and proxene?
A rock containing a moderate amount of biotite, amphibole, and pyroxene could be a diorite. Diorite is an intermediate intrusive igneous rock with a composition between that of granite and gabbro, which typically contains these minerals in varying amounts.
Which mineral is most found in both granitic continental crust and basaltic oceanic crust?
Plagioclase Feldspar and Biotite and Amphibole
Which mineral is found most frequently in both granitic continental crust and basaltic continental crust?
Plagioclase Feldspar and Biotite and Amphibole
Contains moderate amounts of biotite amphibole and pyroxene?
The presence of moderate amounts of biotite, amphibole, and pyroxene typically indicates a metamorphic or igneous rock, often of a mafic composition. Biotite is a mica mineral that contributes to the rock's foliation, while amphibole and pyroxene are essential components of many volcanic and plutonic rocks. This combination suggests a geological environment that may involve significant heat and pressure, such as in subduction zones or volcanic arcs. Rocks with these minerals can exhibit varying textures and colors, depending on their specific mineral content and formation history.
What are the main materials that felsic lava are made of?
Common rock-forming mafic minerals include olivine, pyroxene,amphibole, biotite mica, and the plagioclase feldspars
How would you classify a fine grained igneous r rock that contains approximately 25 percent amphibole 15 percent biotite and 60 percent plagioclase feldspar?
The rock can be classified as a basalt if it is dark-colored and has a fine-grained texture, given its high plagioclase feldspar content and the presence of amphibole and biotite. Alternatively, if it has a lighter color, it could be classified as a diorite or andesite, depending on the specific proportions of minerals and its overall composition. The significant presence of amphibole and biotite suggests a more intermediate composition, potentially placing it in the andesite category. Overall, further details about its color and specific mineral characteristics would aid in precise classification.
What minerals does the rock pumice have?
There usually are no minerals in pumice. it is composed of glass.
What type of igneous rock contains moderate amounts of biotite amphibole amd pyroxene?
The type of igneous rock that contains moderate amounts of biotite, amphibole, and pyroxene is called diorite. Diorite is typically classified as an intermediate rock, having a composition that lies between that of granitic (felsic) and basaltic (mafic) rocks. Its distinctive mineral content gives it a coarse-grained texture, often characterized by a salt-and-pepper appearance.
