white feldspar

Thân thiện

A geologist examines a sample of white feldspar in the field.

Definition

Noun A common, widely distributed type of feldspar mineral, typically light-colored, that is a primary component of many rocks.

Usage

"White feldspar" is a mineralogical term. It is used to identify and describe a specific, common mineral within rocks. It functions as a countable noun.

Examples

• Noun:
  • The granite sample contained large crystals of white feldspar.
  • Geologists identified the light-colored mineral in the pegmatite as white feldspar.

Advanced Usage

• In petrology, the specific type of "white feldspar" (e.g., albite, orthoclase) is often identified for precise rock classification.
  • Under the microscope, the white feldspar was determined to be predominantly albite.

Variants and Related Words

• Albite (n): A common sodium-rich plagioclase feldspar, often appearing white.
• Orthoclase (n): A common potassium feldspar, frequently light-colored or white.
• Plagioclase (n): A series of feldspar minerals including albite, which can be white.
• Feldspar (n): The broader mineral group to which white feldspar belongs.

Synonyms

• Light-colored feldspar
• Common feldspar (when context implies the light-colored variety)

Notes on Meaning

The term "white feldspar" is a descriptive name based on the mineral's typical appearance rather than a precise scientific classification. It generally refers to the common, light-colored varieties of alkali feldspar (like orthoclase) or plagioclase feldspar (like albite) that are major constituents in igneous and metamorphic rocks.

Học thuật

Noun

1. a widely distributed feldspar that forms rocks

Từ đồng nghĩa

• albite