Koderma in Jharkhand is the leading producer of which one of the following minerals?

Koderma, located in the state of Jharkhand, is known as the "Mica Capital of India." It is the leading producer of mica among the options given.

Explanation:

1. Koderma:
Koderma is a district in the state of Jharkhand, India. It is situated in the Chota Nagpur Plateau region, known for its rich mineral resources. Koderma is well-known for its Mica mines and is often referred to as the "Mica Capital of India." The district has a large concentration of mica deposits, making it the leading producer of mica in the country.

2. Mica:
Mica is a naturally occurring mineral that belongs to the silicate group. It is characterized by its excellent thermal and electrical insulating properties, as well as its unique pearlescent luster. Mica is widely used in various industries, including electronics, cosmetics, construction, and automotive.

3. Importance of Mica:
Mica has several significant applications, including:
- Electrical insulation: Mica is widely used as an insulating material in electrical equipment and wiring due to its excellent dielectric properties.
- Heat resistance: Mica can withstand high temperatures and is used as a thermal insulation material in industries such as metallurgy and power generation.
- Cosmetics: Mica is used in the formulation of cosmetics, including makeup products, to add shimmer and shine.
- Construction materials: Mica is used in paints, coatings, and construction materials for its fire-resistant and weatherproof properties.
- Automotive industry: Mica is used in the manufacturing of automotive components, such as brake pads, clutch plates, and gaskets, due to its heat resistance and low friction characteristics.

4. Other mineral resources:
While Koderma is known for its mica production, Jharkhand as a state is also rich in other mineral resources. It is one of the leading producers of minerals like coal, iron ore, copper, mica, and limestone in India. These minerals contribute significantly to the state's economy and industrial development.

Therefore, the correct answer is option B) Mica.