rhombohedral
Speech parts
1. rhombohedral - Adjective
2. rhombohedral - Adjective Satellite
Meaning
Related to the rhombohedron; presenting the form of a rhombohedron, or a form derivable from a rhombohedron; relating to a system of forms including the rhombohedron and scalenohedron.
Source: Webster's dictionarySynonyms
Antonyms
Examples
Acute scalenohedral crystals are sometimes referred to as "dogtooth spar" while the rhombohedral form is sometimes referred to as "nailhead spar".
Carbonates tend to be brittle, many have rhombohedral cleavage, and all react with acid.
At ambient conditions, samarium normally assumes a rhombohedral structure (α form).
In monoclinic, rhombohedral, tetragonal, and trigonal/hexagonal systems there is one unique axis (sometimes called the principal axis) which has higher rotational symmetry than the other two axes.
Polonium has two allotropes, which are known as α-polonium and β-polonium. citation α-polonium has a cubic crystal structure and converts the rhombohedral β-polonium at 36 °C.
Reddish rhombohedral calcite crystals from China.