spinel wikipedia - EAS
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See all on Wikipediahttps://en.wikipedia.org/wiki/SpinelSpinel is the magnesium/aluminium member of the larger spinel group of minerals. It has the formula MgAl 2O 4 in the cubic crystal system. Its name comes from the Latin word spinella, which means spine in reference to its pointed crystals. See more
Spinel crystallizes in the isometric system; common crystal forms are octahedra, usually twinned. It has no true cleavage, but shows an octahedral parting and a conchoidal fracture. Its hardness is 8, its specific gravity is … See more
Geologic occurrence
Spinel is found as a metamorphic mineral in metamorphosed limestones and silica-poor mudstones. It also occurs as a primary mineral in rare mafic See more• Minerals portal
• Aluminium oxynitride
• Ceylonite
• The Three Brothers, a lost 14th-century crown jewel with three red spinels in a triangular arrangement See more• Spinel structure at the University of Wisconsin - Green Bay
• Spinel structure at the Institut for materials science of the University of Kiel
• Value of Spinel See more
Synthetic spinel can be produced by similar means to synthetic corundum, including the Verneuil method and the flux method pioneered by Edmond Frémy. It is widely used as an … See more
• Deer, Howie and Zussman (1966). An Introduction to the Rock-Forming Minerals, Longman, pp. 424–433, ISBN 0-582-44210-9.
• Shumann, Walter (2006). Gemstones of the World 3rd edition, Sterling, pp. 116–117. See moreWikipedia text under CC-BY-SA license- https://nl.wikipedia.org/wiki/Spinel
Spinellen vormen een groep vergelijkbare mineralen met de verhoudingsformule AB2X4, waarin A en B metaalkationen zijn en X overwegend een tweewaardig zuurstof- of zwavelanion. De kleurgevende stoffen zijn ijzer, chroom, vanadium en kobalt. Grote stenen zijn zeldzaam, sterspinellen zeer zeldzaam. Slechts enkele vormen zijn van edelsteenkwaliteit.
Wikipedia · Text under CC-BY-SA license- Chemische formule: MgAl₂O₄
- Kleur: kleurloos, rood, geel, groen, blauw, violet, roze, zwart
- Hardheid: 8
- Streepkleur: wit
- https://sk.wikipedia.org/wiki/Spinel
WebSpinel je minerál kryšalizujúci v kubickej sústave, chemicky podvojný oxid horčíka a hliníka s chemickým vzorcom MgAl 2 O 4. Patrí do skupiny spinelov. Názov pochádza …
- Danaova klasifikácia: 7.2.1.1 (8.vyd.)
- Nickelova-Strunzova klasifikácia: 4.BB.05 (10.vyd.)
- Kryšt. sústava: Kubická sústava
- Strunzova klasifikácia: IV/B.01 (8.vyd.), 4.BB.05 (9.vyd.)
- https://sco.wikipedia.org/wiki/Spinel
WebSpinel / ˈ s p ɪ n ɛ l / is the magnesium aluminium member o the braider spinel group o minerall. It haes the formula MgAl 2 O 4 . [1] It wis kent i the bygane ruby ballas , miskent …
- Formula (repeatin unit): MgAl₂O₄
- Creestal seestem: Isometric
- Strunz clessification: 04.BB.05
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- https://steven-universe.fandom.com/wiki/Spinel
WebSpinel is the main antagonist of Steven Universe: The Movie and a supporting character in Steven Universe Future. She was created 6,000 years prior to the events of the movie …
- https://fridaynightfunking.fandom.com/wiki/Spinel
WebSpinel is tall and lanky, with pink skin, dark reddish-pink hair tied in twin pigtails, and dressed in puffy clothes. Her face has three dark mascara-like lines under each eye. As …
- https://en.wikipedia.org/wiki/Joseph_Spinel
WebIossif Aronovich Spinel. [1] (. Russian: Иосиф Аронович Шпинель) (September 25 (7 October)1892, Bila Tserkva, Ukraine — 2 July 1980, Moscow) was a Russian painter, …
- https://en.wikipedia.org/wiki/Joe_Spinell
WebJoe Spinell was an American character actor who appeared in films in the 1970s and 1980s, as well as various stage productions on and off Broadway. He played supporting roles in The Godfather and The Godfather Part II, …
