INDIAN GEOGRAPHY

MINERAL AND ENERGY RESOURCES IN INDIA

MINERALS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
which is a hard rock
A
slate
B
chalk
C
sandstone
D
coal
Explanation: 

Detailed explanation-1: -Quartzite is a name given to very hard, pure quartz sandstones. Many sandstones contain some grains of other minerals like calcite, clay, or mica.

Detailed explanation-2: -Sandstone was a popular building material from ancient times. It is relatively soft, making it easy to carve.

Detailed explanation-3: -Sandstone, a sedimentary rock, is formed when grains of sand are compacted and cemented together over thousands or millions of years. The sand grains often are composed of the minerals quartz or feldspar that were worn off other rocks and ground down into pebbles.

Detailed explanation-4: -Hardrock a term used loosely for igneous and metamorphic rock, as distinguished from sedimentary rock. These are consolidated rocks like granite or marble.

Detailed explanation-5: -Red sandstone is a type of sedimentary rock and may be found near the city of Jaipur in Rajasthan. This rock is relatively soft and easy to carve.

There is 1 question to complete.