feldspar
/'feldspɑ:/ Cách viết khác : (felspar) /'felspɑ:/
Học thuậtThân thiện
Definition
- Noun:
- A group of hard crystalline minerals: "Feldspar" refers to any of a group of abundant rock-forming minerals consisting primarily of aluminum silicates combined with potassium, sodium, calcium, or barium.
Usage
- General Use: "Feldspar" is a technical term used primarily in geology, mineralogy, and related fields to classify a major component of the Earth's crust.
- Context: It is commonly found in descriptions of rocks (like granite), in discussions about soil composition, or in the context of ceramic and glass manufacturing.
Examples
- Noun:
- Granite typically contains quartz and feldspar.
- The pink color in this granite comes from potassium feldspar.
- Feldspar is a key ingredient in the manufacture of porcelain.
Advanced Usage
- "Plagioclase feldspar": A specific series within the feldspar group containing sodium and calcium.
- Plagioclase feldspar is common in basaltic rocks.
- "Alkali feldspar": A specific series within the feldspar group containing potassium and sodium.
- Orthoclase is a common type of alkali feldspar.
Variants and Related Words
- Felspar (n): An alternative, less common spelling for "feldspar".
- Feldspathic (adj): Describing a rock or material containing or related to feldspar.
- The soil had a feldspathic composition.
Synonyms
- None precise: There is no single common synonym. In very general contexts, it might be described as a rock-forming mineral or a silicate mineral.
Related Phrases
- Feldspar group: The collective term for all feldspar minerals.
- Feldspar weathering: The process by which feldspar breaks down, often forming clay minerals.
Related Idioms
- None: "Feldspar" is a technical/scientific term and is not used in idiomatic expressions.
Noun
- any of a group of hard crystalline minerals that consist of aluminum silicates of potassium or sodium or calcium or barium