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biotite
Biotite is characterized by its distinct sheet-like structure, allowing it to be split into thin, flexible flakes. In a geological context, its presence often serves as a diagnostic marker for identifying specific types of igneous and metamorphic rocks, such as granite or schist.
As a technical mineralogical term, it is used almost exclusively in scientific or academic discourse. It carries a neutral, descriptive connotation and is typically paired with terms relating to composition, crystallization, or mineral assays.
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Ví dụ
The thin sheets of biotite shimmered under the microscope.
The thin sheets of biotite shimmered under the microscope.
Look at these dark flakes of biotite embedded in the quartz.
Biotite is often used to determine the cooling history of igneous rocks.
I wonder if this sample contains more biotite than muscovite.
The specimen is characterized by a high percentage of biotite mica.
The specimen is characterized by a high percentage of biotite mica.
The dark brown color of the rock comes from the presence of biotite.
We need to analyze the biotite crystals to date the formation of the mountain range.
The geologist noted that the biotite was weathered into clay minerals.