trigonal

In the trigonal case there also exists a space group P312.

Changbaiite has a trigonal crystal system and a space group of R3m.

His study of the first trigonal prismatic complexes is one such example.

Trigonal curves are those with gonality 3, and this case gave rise to the name in general.

It is a trigonal mineral which is white when pure.

The way the atoms are put together is a named a trigonal polymer chain.

Arctite has a perfect cleavage and a trigonal crystal system.

The shape of the molecule is a distorted trigonal bipyramid.

It is a deep red to greenish black mineral which crystallizes in the trigonal system.

Fluor-liddicoatite belongs to the trigonal crystal system, class 3 m, space group R 3m.

The copper binding site is described as a 'distorted trigonal pyramidal'.

Starting from a trigonal bipyramid, a face is capped.

The shells are smooth, relatively flat, oval or somewhat trigonal in shape, and usually less than 20-30 mm long.

Simple bonding theories point to the trigonal planar structure.

The classic example of this is the difference between square pyramidal and trigonal bipyramidal structures.

It is also sometimes called a trisoctahedron, or, more fully, trigonal trisoctahedron.

Melonite occurs as trigonal crystals, which cleave in a (0001) direction.

It crystallizes in the trigonal - rhombohedral crystal system.

The fruit is fleshy, trigonal in shape and matures to a dark red/brown colour when fully ripe.

Its most stable form, the grey trigonal allotrope, is sometimes called 'metallic' selenium.

Two structural varieties, trigonal and monoclinic, are known.

(Note: Trigonal crystals are part of the hexagonal group.

It forms a colorless to yellow trigonal crystal with a vitreous luster.

It forms green to deep blue-green trigonal crystals.

If the crystal system is not trigonal then the lattice system is of the same type.