Hibonite, daga Madagascar

Madagascar Madagascar

Gemstone Info

Bayanin Gemstone

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Hibonite, daga Madagascar

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Hibonite ((Ca, Ce) (Al, Ti, Mg) 12O19) wani ma'adinai ne mai launin ruwan kasa da ƙananan 7.5-8.0 da tsarin ma'auni na haɗari. Yana da wuya, amma an samo shi ne a kan manyan shimfida wurare a Madagascar. Wasu kayan shafawa a cikin meteorites na zamani sun hada da hibonite. Har ila yau, Hibonite wani ma'adinai ne na kowa a cikin Ca-Al-rich inclusions (CAIs) da aka samu a wasu meteorites chondritic. Hibonite yana da dangantaka da hibonite-Fe (IM, 2009-027, ((Fe, Mg) Al12O19)) wani ma'adinin gyare-gyare daga Allende meteorite.

Wani mahimmanci mai ban sha'awa, wanda ake kira bayan Paul Hibon, wani masanin fatar Faransa a Madagascar, wanda ya gano ma'adinai a watan Yuni Xune. Ya aika da wani samfurin tare da wasu samfurori zuwa Jean Behier don binciken a wannan shekarar. Behier ya gane shi a matsayin sabon ma'adinai kuma ya ba shi sunan "hibonite". Ya gabatar da samfurin ga C. Guillemin, Labratoire de Minéralogie de la Sorbonne, a Paris, Faransa don a kara nazarin. Ya haifar da bayanin sabon ma'adinai na Curien et al (1953).

Hibonite daga Esiva, yankin Fort Dauphin, Tuléar, Madagascar
Black, lu'ulu'u masu wuya an dakatar da su a cikin ƙwayoyin katako mai suna metamorphosed da yawa a lissafin palgioclase. Abokan abokan tarayya a cikin matrix sune corundum, spinel da thorianite. An bayyana a cikin 1956. Kada ku damu da Hibbenite. Ana kiran Hibonite bayan P. Hibon, wanda ya gano ma'adinai.

Janar

Category: Oxide ma'adanai
Formula: (Ca, Ce) (Al, Ti, Mg) 12O19
Hanyar Crystal: Hexagonal
Kungiyar Crystal: Dipramramal Dihexagonal (6 / mmm)
Alamar HM: (6 / m 2 / m 2 / m)

Identification

Launi: Blackish baki zuwa baki; launin ruwan kasa mai launin ruwan kasa a cikin gutsutsiri; blue a yanayin meteorite
Kirguwa na Crystal: Prismatic platy zuwa m pyramidal lu'ulu'u ne
Kuskure: {0001} mai kyau, {1010} rabu
Raguwa: Subconchoidal
Girman ƙananan Mohs: 7½-8
Luster: Vitreous
Ƙari: launin ruwan kasa
Diaphaneity: Semitransparent
Specific nauyi: 3.84
Abubuwan da ke da kyau: Uniaxial (-)
Ra'ayin mai juyawa: n = = 1.807 (2), n = = 1.79 (1)
Pleochroism: O = brownish launin toka; E = gashi

Hibonite, daga Madagascar

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