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  2. Quartzite - Wikipedia

    en.wikipedia.org/wiki/Quartzite

    Quartzite is a very hard rock composed predominantly of an interlocking mosaic of quartz crystals. The grainy, sandpaper-like surface is glassy in appearance. Minor amounts of former cementing materials, iron oxide, silica, carbonate and clay, often migrate during recrystallization, causing streaks and lenses to form within the quartzite. [ 1 ]

  3. Silicate mineral paint - Wikipedia

    en.wikipedia.org/wiki/Silicate_mineral_paint

    Silicate mineral paints or mineral colors are paint coats with mineral binding agents. Two relevant mineral binders play a role in the field of colors: Lime and silicate . Under influence of carbon dioxide, lime-based binders carbonate and water silicate-based binders solidify.

  4. Acrylic paint - Wikipedia

    en.wikipedia.org/wiki/Acrylic_paint

    The synthetic paint was first used in the 1940s, displaying some properties of both oil and watercolor. [3] Between 1946 and 1949, Leonard Bocour and Sam Golden invented a solution acrylic paint under the brand Magna paint. These were mineral spirit-based paints. Water-based acrylic paints were subsequently sold as latex house paints. [2]

  5. Crystal Peak Dolomite - Wikipedia

    en.wikipedia.org/wiki/Crystal_Peak_Dolomite

    It separates the Watson Ranch Quartzite tongue of Swan Peak Quartzite from the younger Eureka Quartzite. The stratum generally consists of brown, gray to black, usually fine- to medium-grained, but may be coarse-grained, dolomite. Thin [about 6 feet (1.8 m) thick] quartz sandstone and siltstone occur about 50 feet (15 m) from base. The layer is ...

  6. Baraboo Quartzite - Wikipedia

    en.wikipedia.org/wiki/Baraboo_Quartzite

    Baraboo Quartzite is a Precambrian geological formation [1] of quartzite, found in the region of Baraboo, Wisconsin. While pure quartzite is usually white or gray, Baraboo Quartzite is typically dark purple to maroon in color, due to the presence of iron ( hematite ) and other impurities. [ 2 ]

  7. Prasiolite - Wikipedia

    en.wikipedia.org/wiki/Prasiolite

    The word prasiolite literally means "scallion green-colored stone" and is derived from Greek πράσον prason meaning "leek" and λίθος lithos meaning "stone". The mineral was given its name due to its green-colored appearance. Natural prasiolite is a very light, translucent green. Darker green quartz is generally the result of ...

  8. Cristobalite - Wikipedia

    en.wikipedia.org/wiki/Cristobalite

    Cristobalite is stable only above 1470 °C, but can crystallize and persist metastably at lower temperatures. The persistence of cristobalite outside its thermodynamic stability range occurs because the transition from cristobalite to quartz or tridymite is "reconstructive", requiring the breaking up and reforming of the silica framework.

  9. Eureka Quartzite - Wikipedia

    en.wikipedia.org/wiki/Eureka_Quartzite

    Cliff-forming quartzite, the principle part of the Eureka, is composed of more than 99 percent quartz, which includes both the sand grains and the cement that binds them. [6] The quartz cement accounts for its outstanding hardness and resistance to erosion. Minor constituents are grains of zircon and tourmaline and a trace of feldspar. [6]