Glossary
Quartz
Quartz refers to a crystalline and very hard mineral composed on silica that is found worldwide in many different types of rocks that includes sandstone and granite. Quartz comes in m any forms, including amethyst, aventurine, citrin, opal, rock crystal, tiger's eye, rose quartz,and many others. Rutilated quartz and tourmalinated quartz have needle-like inclusions of other minerals.
Related Articles | |
| Gypsum at top500.de | ■■■■■■ |
Gypsum refers to a naturally occurring crystalline form of calcium sulfate in which each molecule of . . . Read More | |
| Granite at top500.de | ■■■■■ |
Granite is described as a coarse grained igneous rock containing the minerals mica, quartz and feldspar. . . . Read More | |
| Stone at top500.de | ■■■■■ |
In geology, a rock (or stone) is a naturally occurring solid aggregate of one or more minerals or mineraloids. . . . Read More | |
| Gemstone at top500.de | ■■■■■ |
Gemstone (Gem) is described as precious or semiprecious stone that may be used as a jewel when cut and . . . Read More | |
| Kaolin at top500.de | ■■■■■ |
Kaolin is referring to a group of clay minerals, such as kaolinite, Al2Si2O5(OH)4, derived from the alteration . . . Read More | |
| Marble at top500.de | ■■■■■ |
Marble is a metamorphic rock composed of recrystallized carbonate minerals, most commonly calcite or . . . Read More | |
| Feldspar at top500.de | ■■■■■ |
Feldspar (German: Feldspat) pertains to the mineral found in granite which melts around 2300 fahrenheit, . . . Read More | |
| Purnululu National Park at travel-glossary.com | ■■■■ |
The Purnululu National Park is a World Heritage site in Australia defined by the UNESCO in 2003 and definitely . . . Read More | |
| Amethyst at top500.de | ■■■■ |
Amethyst is a gemstone characterized as a transparent and crystalline variety of quartz with a deep purple . . . Read More | |
| Fireclay at top500.de | ■■■■ |
Fireclay refers to a variation of vitreous china having greater amounts of quartz and feldspar in the . . . Read More | |