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Amphiboles are minerals containing mostly silicon, oxygen, iron, and magnesium.

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Amphibole chemical formula?

The Amphibole chemical formula is Mg,Fe,Ca,Na)2-3(Mg,Fe,Al)5(Si,Al)8O22OH2.


What is Obsidians' composition?

potassiun feldspar, quartz, plagioclase feldspar,biotite, and amphibole.


What is the mineral composition of andesite?

basalt and dacite, and ranges from 57 to 63% silicon dioxide (SiO2)


Do diorite and rhyolite have the same chemical composition?

No, diorite and rhyolite have different chemical compositions. Diorite is a coarse-grained intrusive igneous rock composed mainly of plagioclase feldspar and amphibole, while rhyolite is a fine-grained volcanic rock composed predominantly of quartz, feldspar, and mica.


When water evaporates its chemical composition?

The chemical composition remain unchanged.


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.


What is the diffence between physical and chemical properties as well an physical and chemical changes?

Physical properties can be observed without changing the chemical composition of a substance. Chemical properties can only be observed by changing the chemical composition of the substance. In a physical change, the chemical composition of the substance does not change. In a chemical change, the chemical composition of the substance changes.


What is the chemical composition of skarn?

Skarns are typically composed of minerals such as garnet, pyroxene, amphibole, epidote, and scapolite. They can also contain sulfide minerals like pyrite, chalcopyrite, and sphalerite, as well as carbonate minerals like calcite and dolomite. The exact chemical composition of a skarn can vary depending on the specific parent rock and the alteration processes that have occurred.


The groups of rocks are classified by?

i think is chemical composition its not chemical composition, it's how they were formed


Groups of rocks are classified by?

i think is chemical composition its not chemical composition, it's how they were formed


Are rocks a chemical makeup?

Yes, the composition of the rocks is as a result of the distinct chemical composition.


Does melting ice changes the chemical composition of water?

The chemical composition of water remain unchanged.