Non-metallic mineral is
- (a)Marble
- (b)Manganese
- (c)Silver
- (d)Lead
Answer
A
Why
Correct — A, Marble. Marble is a non-metallic mineral (a metamorphic rock composed mainly of calcium carbonate). Manganese, silver and lead are metallic minerals (ores/metals).
Why the others are wrong
- (b)Manganese — Manganese is a metallic mineral (a metal used in steel-making).
- (c)Silver — Silver is a metallic mineral (a precious metal).
- (d)Lead — Lead is a metallic mineral (a base metal).
Concept
Minerals are broadly classified as metallic (yield metals — iron, manganese, silver, lead, etc.) and non-metallic (marble, limestone, mica, gypsum, etc.). Marble, being a carbonate rock, is non-metallic.
Odd-one-out: three metals vs one rock. Marble (calcium-carbonate rock) is the non-metallic mineral.
Key facts
- Non-metallic minerals: marble, limestone, mica, gypsum, dolomite, etc.
- Metallic minerals: iron, manganese, silver, lead, copper, bauxite, etc.
- Marble is a metamorphic rock (recrystallised limestone).
- Madhya Pradesh is a notable producer of several minerals.
Study next
Classification of minerals (metallic vs non-metallic)Rocks and mineralsMinerals of Madhya PradeshUses of marble, limestone and mica
Common traps
- Treating any hard mineral as 'metallic'
- Confusing rocks (marble) with metals (manganese, lead)
Odd-one-out classification of minerals.
Related PYQs
No directly related past PYQ was found.
Practice
- practice — not a real PYQ
Which of the following is a metallic mineral?
- (a)Manganese
- (b)Marble
- (c)Gypsum
- (d)Mica
Answer(a) Manganese.
- practice — not a real PYQ
Marble is formed by the metamorphism of which rock?
- (a)Limestone
- (b)Granite
- (c)Sandstone
- (d)Basalt
Answer(a) Limestone.