Granite is a well-known igneous rock that is used in construction and decoration. However, there is another type of granite known as “bastard granite” that is not as popular. In this article, we will explore the definition, origin, meaning, associations, synonyms, antonyms, and examples of bastard granite.
Definitions
Bastard granite is a type of rock that is composed of quartz, feldspar, and mica. It is also known as “grey granite” or “greywacke.” The term “bastard” in bastard granite refers to the fact that it is not a true granite, but rather a metamorphic rock that has been altered by heat and pressure.
Origin
Bastard granite is formed from the metamorphism of sedimentary rocks such as sandstone or shale. The heat and pressure cause the minerals in the rock to recrystallize, forming a new rock that is harder and more durable than the original sedimentary rock.
Meaning in different dictionaries
According to the Oxford English Dictionary, bastard granite is “a type of metamorphic rock consisting of quartz, feldspar, and mica, formed from the alteration of sedimentary rocks.” Merriam-Webster defines it as “a metamorphic rock that is composed chiefly of quartz, feldspar, and mica and is usually gray in color.”
Associations
Bastard granite is often associated with durability, strength, and resistance to weathering. It is commonly used in construction for building facades, paving stones, and countertops.
Synonyms
Some synonyms of bastard granite include grey granite, greywacke, and metagraywacke.
Antonyms
The antonyms of bastard granite are true granite and sedimentary rock.
The same root words
The root words of bastard granite are “bastard,” which means illegitimate or inferior, and “granite,” which is a type of igneous rock.
Example Sentences
- The building’s facade was made of bastard granite, giving it a sleek and modern look.
- The countertops in the kitchen were made of grey granite, which was actually bastard granite.
- The paving stones in the garden were made of bastard granite, which was able to withstand harsh weather conditions.