crystal face
face of crystal

Olivine crystal faces are visible, a mineral rich in silica, iron and magnesium.

Many diamonds are so distorted that few crystal faces are discernible.

Milekey made several excursions into the ranges to examine crystal faces and cut new types for evaluation.

Milekey had observed this phenomenon when he chipped the first lump from the black crystal face.

Thus, the crystal face must grow as a whole.

Fluor-liddicoatite usually has a pedion (a single crystal face) opposite one or two pyramids.

Some wet etchants etch crystalline materials at very different rates depending upon which crystal face is exposed.

The surface free energy of a crystal face is:

Twinning is also commonly observed and crystal faces may be striated.

The main ark was dim, but its great glass- crystal face reflected a rippling sister to the moon.