1. What are minerals? 2. What is the use of Gypsum, magnetite and aluminium in our daily life? 3. What are gemstones? Give examples.
Answers
Answer:
1. A mineral is a naturally occurring, inorganic solid, with a definite chemical composition and ordered internal structure.
2. Gypsum uses include: Manufacture of wallboard, cement, plaster of Paris, soil conditioning, a hardening retarder in portland cement.
Magnetite uses include : It is attracted to a magnet and can be magnetized to become a permanent magnet itself. It is the most magnetic of all the naturally-occurring minerals on Earth.
Aluminum uses include : CDs, cars, refrigerators, kitchenware, electric power lines, packaging for food and medicine, computers, furniture , aircrafts , etc. are made up of aluminum. It is used in construction too.
3. Gemstones are minerals, rocks, or organic matters that have been chosen for their beauty, durability, and rarity and then cut or faceted and polished to make jewellery or other human adornments.
for example: the diamond, the pearl, the ruby, the sapphire, the emerald, the oriental catseye, and the alexandrite.