Correct option is B
The correct answer is (b) Micas, chlorite, talc, and serpentine
· Phyllosilicates are a group of silicate minerals that have a sheet-like structure.
· Examples include micas (biotite, muscovite), chlorite, talc, and serpentine.
· They are layered minerals with perfect basal cleavage.
· Found in metamorphic and igneous rocks.
· Important in soil formation, ceramics, and insulation.
· Their structure consists of tetrahedral and octahedral sheets.
Information Booster:
• Also called sheet silicates.
• Exhibit platy or flaky appearance.
• Used in electrical insulators and cosmetics (talcum powder).
• Common in clay minerals.
• Micas are used in thermal and electrical equipment.
• Talc is the softest mineral on Mohs scale (1).
Additional Information:
• Mercury, graphite, diamond – Elements/minerals, not silicates.
• Pyrite, galena, sphalerite – Sulfide minerals.
• Calcite, magnesite, dolomite – Carbonate minerals.