tràng thạch
Definition
- Noun (Geology):
- Feldspar: The common name for a large group of rock-forming silicate minerals that are light-colored (e.g., white, pink, beige). They are a primary constituent in most igneous rocks, especially granite.
Usage Examples
- Noun:
- Thành phần chính của đá granit thường bao gồm thạch anh và tràng thạch. (The main components of granite typically include quartz and feldspar.)
- Tràng thạch là một trong những khoáng vật phổ biến nhất trong vỏ Trái Đất. (Feldspar is one of the most common minerals in the Earth's crust.)
Advanced Usage
- The term "tràng thạch" is a classical, Sino-Vietnamese geological term. In modern scientific and technical contexts, the international term "feldspat" (from German ) is also commonly used in Vietnamese.
- Nhóm khoáng vật feldspat rất quan trọng trong công nghiệp gốm sứ. (The feldspar group of minerals is very important in the ceramics industry.)
Variants and Related Words
- Feldspat (n): Feldspar. The modern, internationally-derived term.
- Đá hoa cương / Granit (n): Granite. A rock type where tràng thạch (feldspar) is a major component.
- Thạch anh (n): Quartz. Another major mineral commonly found alongside feldspar in rocks like granite.
Synonyms
- Feldspar: The direct English equivalent.
Notes on Meaning
- "Tràng thạch" is not a single mineral but a group name. Common types include:
- Orthoclase (kali feldspar): Often pink or white.
- Plagioclase: A series including albite (sodium-rich) and anorthite (calcium-rich), often white or gray.
- The word is primarily used in geological, mineralogical, or related industrial contexts (e.g., ceramics, construction). It is not a common word in everyday conversation.