List of top Geology Questions on Determinative mineralogy of common rock forming minerals asked in GATE GG

Which one or more of the following minerals shows O:Si ratio of 4:1 in its silicate structure?
Which one of the following optic signs is CORRECT for a mineral with the given centered optic axis figure?
optic signs
The minimum anion-to-cation radius ratio at which a 3-fold coordination becomes possible is ............. [round off to 2 decimal places]
The ratio of bridging to non-bridging oxygen atoms in the amphibole structure is:
Which is the CORRECT sequence of ore minerals in their increasing order of reflectance?
The total number of symmetry elements in the crystal class represented by the point group 4/m3 2/m is:
All the faces of an octahedron can be collectively symbolized by:
Rhodochrosite in hand specimen is most likely to be confused with certain varieties of:
The number of lattice points in a face-centered cubic (FCC) unit cell is:
Which one of the following mineral pairs shows solid solubility through coupled substitution of elements?