Difference between revisions of "Quartz"
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| − | '''Quartz''' is the most common mineral found on | + | {{Mineral |
| − | <br> Quartz is used in a number of applications | + | | name=Quartz |
| + | | image=Quartz.jpg | ||
| + | | cdesc=Silicon dioxide | ||
| + | | formula=SiO<sub>2</sub> | ||
| + | | colors=Clear (with no impurities) | ||
| + | | streak=White | ||
| + | | hardness=7 | ||
| + | | cleavage=None | ||
| + | | fracture=Conchoidal | ||
| + | | sgravity=2.65 | ||
| + | | csystem=rhombohedral | ||
| + | | chabit=6-sided prism ending in 6-sided pyramid | ||
| + | | enviro= | ||
| + | | occur=Hydrothermal veins, common constituent of granite and other igneous and metamorphic rocks | ||
| + | | nameorigin=[[Germany|German]] "Quarz". | ||
| + | }} | ||
| + | '''Quartz''' is the second most common [[mineral]] found on [[Earth]] being the primary component of [[sand]]. More accurately known as silicon dioxide, quartz has a chemical composition of SiO<sub>2</sub> arranged in a repeating lattice forming [[hexagon]]al [[crystal]]s. Pure quartz is clear, but colored variations are created because of impurities in the crystal. Quartz is number 7 on the [[Mohs Hardness Scale]]. | ||
| + | <br> Quartz is used in a number of applications; most commonly in [[glass]] making but also abrasives, electrical components or decorative gemstones especially if colored by impurities. | ||
[[Category:Minerals]] | [[Category:Minerals]] | ||
Latest revision as of 18:25, August 24, 2018
| Quartz | |
|---|---|
| |
| Chemical name | Silicon dioxide |
| Chemical formula | SiO2 |
| Identification | |
| Colors | Clear (with no impurities) |
| Crystal habit | 6-sided prism ending in 6-sided pyramid |
| Crystal system | rhombohedral |
| Cleavage | None |
| Fracture | Conchoidal |
| Hardness | 7 |
| Name origin | German "Quarz". |
| Specific gravity | 2.65 |
| Streak | White |
Quartz is the second most common mineral found on Earth being the primary component of sand. More accurately known as silicon dioxide, quartz has a chemical composition of SiO2 arranged in a repeating lattice forming hexagonal crystals. Pure quartz is clear, but colored variations are created because of impurities in the crystal. Quartz is number 7 on the Mohs Hardness Scale.
Quartz is used in a number of applications; most commonly in glass making but also abrasives, electrical components or decorative gemstones especially if colored by impurities.