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How geologists determine the mineral composition of granite?
The minerals are for the most part observable in a coarse grained igneous rock such as granite. If necessary, however, thin slices of rocks are made to be viewable under a microscope that could help identify trace minerals.
What test do geologists use to determine the hardness of a mineral?
Geologists use the Mohs scale of mineral hardness to determine the relative hardness of a mineral by scratching it with minerals of known hardness. The scale ranks minerals from 1 (softest) to 10 (hardest) based on their ability to scratch or be scratched by other minerals.
What do geologists use the acid test for?
Geologists use the acid test to identify and distinguish between different types of minerals based on their reaction to acid. By observing if a mineral fizzes or dissolves when exposed to acid, geologists can determine the mineral's chemical composition.
How did geologists determine the divisions of the geologic time scale?
Mainly abrupt changes in mineral layers or the fossils in them.
What types of geologists are there?
There are different types of geologists that study oil exploration, mineral exploration and mineral mining. There are also engineering geologists.
How do geologist determine mineral composition of granite?
They are able to slice the granite into extremely thin layers, observe it under a microscope, and view the amount and type of minerals that are present.
What do geologists use to classify a mineral's hardness?
Geologists use the Mohs scale of mineral hardness to characterize the scratch resistance of various minerals through the ability of a harder material to scratch a softer material. In this scale diamond is the hardest material and talc the softest.
What property are geologists focusing on when they do scratch tests?
Geologists focus on the hardness property of minerals when they perform scratch tests. This test helps determine the resistance of a mineral to being scratched by another material, which can be indicative of its mineral type.
Is granite an ore mineral?
No, granite is not an ore mineral. Ores are the rock form of certain metals.
How do geologist determine the minersl composition if granite?
by observing it,we properties of different minerals,so by observing it we are able to know which mineral is which
What minerals determine the color of granite?
The color of granite is primarily determined by the presence of mineral crystals such as feldspar, quartz, and mica. The composition and concentration of these minerals contribute to the various colors and patterns seen in granite rocks. Additional minerals like hornblende and amphibole can also influence the coloration of granite.
What are the mineral compositions of granite?
Granite has feldspar, quartz, biotite.
