Its crystal symmetry and form are similar to topaz; however, topaz is a calcium fluorine bearing nesosilicate.
12.
Those minerals have the same chemical composition, but different crystal symmetry orthorhombic for tantalite or columbite and tetragonal for tapiolite.
13.
Accordingly, the rest of groups of crystal symmetry where QMR can be observed constitutes 27 antiferromagnetic and 31 pyromagnetic crystal classes.
14.
Because zemannite is secondary mineral, its crystals usually on other rocks and retain the hexagonal shape corresponding to their crystal symmetry.
15.
However, the 32 classes of crystal symmetry are one-and-the-same as the 32 crystallographic point groups.
16.
Magnetite also has a phase transition at which the crystal symmetry changes from cubic ( above ) to monoclinic or possibly triclinic below.
17.
It has the crystal symmetry of a monoclinic with a diffraction symbol of " 2 / mP-/-".
18.
They all have relatively low, monoclinic crystal symmetries and contain nearly identical puckered Se 8 rings with different arrangements, as in sulfur.
19.
In particular the crystal symmetry of the B 4 C composition and the non-metallic electrical character of the B 13 C 2 composition.
20.
The possibility of enantiomorphic crystals is determined by the crystal symmetry, i . e ., by the point group of the crystal species.
