1 . D efine What are minerals?List examples. __ ............................................................... ............................................................... ............................................. . ........-...................................... ............. ............................................................... ...................................................................... ........................ .......................................

Minerals are naturally occurring, inorganic substances with a definite chemical composition and an ordered atomic structure. They are the building blocks of rocks and are found in the Earth's crust. Minerals can be identified by their physical properties, such as hardness, luster, and cleavage, as well as their chemical composition.<br /><br />Examples of minerals include:<br /><br />1. Quartz: A hard, crystalline mineral composed of silicon and oxygen atoms. Quartz is one of the most common minerals found on Earth and is used in a variety of applications, including glassmaking, electronics, and watches.<br /><br />2. Feldspar: A group of minerals that are the most abundant in the Earth's crust. Feldspar is used in the manufacture of glass, ceramics, and as a filler in paints and plastics.<br /><br />3. Mica: A group of sheet silicate minerals that are known for their perfect cleavage and ability to split into thin sheets. Mica is used in electrical insulation, as a lubricant, and in cosmetics.<br /><br />4. Halite: A naturally occurring mineral form of sodium chloride (NaCl), also known as rock salt. Halite is used as a seasoning for food and in the production of caustic soda.<br /><br />5. Calcite: A carbonate mineral and the most common mineral in the Earth's crust. Calcite is used in the manufacture of cement, as a building material, and as a filler in paints and plastics.<br /><br />These are just a few examples of the many different types of minerals that can be found on Earth. Each mineral has its own unique properties and uses, making them an essential part of our daily lives.