Limestone is a _____mineral.
Answer & explanation
Correct answer: option 4
The correct answer is Option (4) → Non-metallic
Option (1) Metallic — Incorrect. Metallic minerals are the sources of metals, such as iron ore, copper and gold. Limestone yields no metal.
Option (2) Ferrous — Incorrect. Ferrous minerals are metallic minerals with iron content, such as iron ore and manganese.
Option (3) Non-ferrous metallic — Incorrect. These are metallic minerals without iron, such as copper and bauxite.
Option (4) Non-metallic — Correct. Non-metallic minerals are either organic, like coal and petroleum, or inorganic, like mica, limestone and graphite. Limestone is used mainly as a raw material for cement.
NCERT (2025-26): “Types of Mineral Resources On the basis of chemical and physical properties, minerals may be grouped under two main categories of metallics and non-metallics which may further be classified as follows… …metallic minerals are the sources of metals. Iron ore, copper, gold produce metal and are included in this category. Metallic minerals are further divided into ferrous and non-ferrous metallic minerals. Ferrous, as you know, refers to iron. All those minerals which have iron content are ferrous such as iron ore itself and those which do not have iron content are non-ferrous such as copper, bauxite, etc. Non-metallic minerals are either organic in origin such as fossil fuels also known as mineral fuels which are derived from the buried animal and plant life such as coal and petroleum. Other type of non-metallic minerals are inorganic in origin such as mica, limestone and graphite, etc.…”
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