clast-, clas-, -clastic, -clast, -clase, -clasia, -clasis, -clasis, -clasmic, -clasm

A kind of plagioclase feldspar occurring commonly in white crystals, sometimes shaded with gray, green, or red.

Plagioclase refers to any of a series of common feldspar minerals, consisting of differing mixtures of sodium and calcium aluminum silicates.

Plagioclase is typically white, yellow, or reddish-gray, but it can also be blue to black. It occurs in igneous rocks.

The minerals albite, oligoclase, andesine, labradorite, bytownite, and anorthite are all plagioclases.

A characteristic of oligoclasite, which is granular igneous rock, mainly composed of oligoclase mineral of the plagioclase series.

Concerning the effects on the heart after assuming an upright posture.

1. Relating to, or referring to, a map or chart on which small shapes or areas are accurately represented.
2. Preserving the correct shape.

A colorless, gray, green, or yellow magnesium oxide mineral.

A fragment in a sediment or sedimentary rock, larger than and easily distinguished from the fine-grained matrix in which it is embedded.

Any of the feldspar minerals varying in composition from acidic albite to basic anorthite found in most igneous rocks and which shows twinning striations on good cleavage surfaces.