crystal class

In the classification of crystals, each point group is also known as a crystal class.

Replies: lets say you take a good crystal class and tap it gently with a hammer.

Marrite is part of the monoclinic crystal class, and point group.

She herself earned the Crystal Class in the later episodes in the first series.

It belongs to the hexagonal crystal system, but the crystal class is unknown.

It is classified under the isometric crystal class.

This mineral belongs in the isometric crystal class.

Here the term "enantiomorphic" has different meaning than in table for three-dimensional crystal classes.

Devilline is prismatic and belongs to the crystal class 2/m.

There are 32 possible crystal classes.

The monoclinic system includes crystal classes with a single twofold rotation axis and/or a mirror plane.

Names and symbols of the 32 crystal classes in International Tables for Crystallography (2006).

Twenty-one of the 32 crystal classes lack a center of symmetry, and of these, 20 are piezoelectric.

Of these 20 piezoelectric crystal classes, 10 of them are pyroelectric (polar).

The lower case letter specifies the crystal class, and the upper case letter the lattice type.

It crystallizes in the isometric - hexoctahedral crystal class.

The crystal class is hexagonal 6/m, space group P6/m.

Marialite has tetragonal crystallography and a 4/m crystal class.

Although colimaite belongs to the orthorhombic crystal class, their crystallographic forms were not observed.

It belongs in the monoclinic, prismatic crystal Class 2/m, with space group P2/c.

The 7 crystal systems consist of 32 crystal classes (corresponding to the 32 crystallographic point groups) as shown in the following table.

The crystal class is 2/m, meaning the structure has an axis of twofold rotational symmetry perpendicular to a mirror plane.

Hagendorfite belongs to the monoclinic crystal class, so it is assigned to the biaxial optical class.

Of the thirty-two crystal classes, twenty-one are non-centrosymmetric (not having a centre of symmetry).

Fact: Of the thirty-two possible crystal classes, only one-the gyroidal isometric-had, until recently, never been found in the mineral world.