Quartz characterization, properties, applications.

Quartz is a mineral composed of silicon and oxygen, with a chemical composition of SiO 2. It is the most abundant mineral in Earth's crust and is resistant to both chemical and physical weathering. When rocks weather away, the residual material usually contains quartz. This is why the sand at most of the world's beaches is quartz.
Quartz is a mineral composed of silicon and oxygen, with a chemical composition of SiO2. It is the most abundant mineral in Earth's crust and is resistant to both chemical and physical weathering. When rocks weather away, the residual material usually contains quartz. This is why the sand at most of the world's beaches is quartz.Quartz is a mineral composed of silicon and oxygen, with a chemical composition of SiO2. It is the most abundant mineral in Earth's crust and is resistant to both chemical and physical weathering. When rocks weather away, the residual material usually contains quartz. This is why the sand at most of the world's beaches is quartz.Quartz is a mineral composed of silicon and oxygen, with a chemical composition of SiO2. It is the most abundant mineral in Earth's crust and is resistant to both chemical and physical weathering. When rocks weather away, the residual material usually contains quartz. This is why the sand at most of the world's beaches is quartz.
Quartz is a mineral composed of silicon and oxygen, with a chemical composition of SiO2. It is the most abundant mineral in Earth's crust and is resistant to both chemical and physical weathering. When rocks weather away, the residual material usually contains quartz. This is why the sand at most of the world's beaches is quartz.
Crystallography: Quartz rhombohedral; trigonal-trapezohedral. Quartz hexagonal; trapezohedral. Crystals commonly prismatic, with prism faces horizontally striated. Terminated usually by a combination of positive and negative rhombohedrons, which often are so equally developed as to give the effect of a hexagonal dipyramid. In some crystals one rhombohedron predominates or occurs alone. The prism faces may be wanting, and the combination of the two rhombohedrons gives what appears to be a doubly terminated hexagonal dipyramid (known as a quartzoid). Some crystals much distorted, but the recognition of the prism faces by their horizontal striations will assist in the orientation of the crystal. The trapezohedral faces are to be occasionally observed as small truncations between a prism face and that of an adjoining rhombohedron either to the right or left, forming what are known as right- or left-handed crystals. Crystals are often elongated in tapering and sharply pointed forms, owing to an oscillatory combination between the faces of the different rhombohedrons and those of the prism. Some crystals twisted and bent.Quartz is the most abundant and widely distributed mineral found at Earth's surface. It is present and plentiful in all parts of the world. It forms at all temperatures. it is all about quartz and properties.

4. Hardness: Quartz is a hard mineral,
ranking 7 on the Mohs scale.
Transparency: It can be transparent,
translucent, or opaque, depending on its
impurities.
Crystal structure: Quartz has a hexagonal
crystal structure.
Color: It can be colorless or come in
various colors due to impurities, such as
amethyst (purple) and citrine (yellow).

7. Quartz is used to make high-quality glass products
like lenses and optical fibres due to its high purity
and transparency.
It is used in semiconductor manufacturing for its
excellent thermal and electrical insulating
properties.
Quartz is crucial in the production of silicon
wafers for computer chips as a substrate material.
Quartz crystals are essential in electronic devices
for precise timekeeping and frequency control
applications. When put under pressure, quartz
will emit a positive charge from one end of the
crystal & a negative charge from the other. This
makes it useful in many electronic appliances.

8. References:
“Quartz: Deposits, Mineralogy and Analytics “ by Petr Cerny and Ronald
Chapman.
Mindat-Quartz (www.mindat.org/min-3337.html)
Minerals Education Coalition -Quartz
(mineralseducationcoalition.org/minerals-database/quartz)
Geology.com -Quartz (geology.com/minerals/quartz.shtml)
Quartz Information from the U.S. Geological Survey
(pubs.usgs.gov/gip/DS-19/quartz.html)

9. THANK
YOU…
2022MMB1378 -Gowtham Raju H B
2022MMB1387 -PaidiSatwika