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Ishita das Asked a Question
January 28, 2021 7:40 ampts 30 pts
  • IIT JAM
  • Geology (GG)

What is the face difference between the given miller indices in their corresponding crystal system: (hkl) in isometric system and (hkl) in tetragonal system?

What is the face difference between the given Miller indices in their corresponding crystal system: (hkl) in isometric system and (hkl) in tetragonal system? How do we know the (hkl) face belons to which form?
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  • Sajan sarthak thankyou
    page 143 to 156 in KM BANGAR
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    Ishita das
    Thank you so much sir
  • Sajan sarthak Best Answer
    hkl face belongs to which form you have to remember.. TIPS is that hkl is the form contains maximum face of a crystal system and also maximum symmetry
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    Ishita das
    In which book can i get that because i didn't find it in mineralogy by Dana
  • Sajan sarthak thankyou
    ISOMETRIC SYSTEM HAS (hkl) hexoctahedron= 6*8=48. IN tetragonal (hkl)= ditetragonal dipyramid( 4*2=8 ,dipyramid(8*2=16). =16 faces. so Difference is 48-16=32
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    Ishita das
    how do we know that hkl belongs to the particular crystal form you just stated? Can you state the logic behind ?