WaseHibonite, waseMadagascar

Hibonite Madagascar

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Inkcazo yeGemstone

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WaseHibonite, waseMadagascar

yokuzonwabisa

I-Hibonite ((Ca, Ce) (Al, Ti, Mg) 12O19) i-mineral ebomvu ebomvu ngobunzima be-7.5-8.0 kunye nesakhiwo sekristal e-hexagonal. Akukho nto inqabileyo, kodwa ifunyenwe ngamatye e-metamorphic high grade eMadagascar. Ezinye iinkozo zokugungqa kwiimeteorite zakudala ziqukethe i-hibonite. I-Hibonite nayo iyimigodi eqhelekileyo kwi-Ca-Al-rich inclusions (i-CAIs) efunyenwe kwezinye i-chondritic meteorites. I-Hibonite inxulumene ngokusondeleyo ne-hibonite-Fe (IMA 2009-027, ((Fe, Mg) i-Al12O19)) ukuguqulwa kwamaminerali ukusuka kwi-Allende meteorite.

Into enqabileyo kakhulu, Ebizwa emva kukaPaul Hibon, umcebisi waseFransi eMadagascar, owathola i-mineral in June 1953. Wathumela iplasela kunye nezinye iisampuli kuJean Behier ukulungiselela uviwo kulo nyaka. I-Behier yazibona njengento entsha yamaminerali kwaye yanika igama elithi "hibonite". Wathumela isampula ku-C. Guillemin, Labratoire de Minéralogie de la Sorbonne, eParis, eFransi ukuze ihlalutye kwakhona. Kwaphumela kwinkcazo yombumbano omtsha nguCurien et al (1956).

IHibonite esuka eSiva, kwingingqi yaseFort Dauphin, eTuléar, eMadagascar
Amnyama, ama-crystal azinqamle kwi-matrix yamatricone ene-calcioclase. Iintlobo ezinokuthi zidibanise ngaphakathi kwimizi yesifo se-corrium, i-spinel ne-thorianite. Kuchazwe kwi1956. Musa ukudideka neHibbenite. U-Hibonite ubizwa ngokuba nguP. Hibon, owathi wafumana i-mineral.

ngokubanzi

Udidi: Amaminerali e-oxide
I-Formula: (Ca, Ce) (Al, Ti, Mg) 12O19
Inkqubo ye-Crystal: I-hexagonal
Iklasi yeCriststal: I-diyxagonal dipyramidal (6 / mmm)
Uphawu lwe-HM: (6 / m 2 / m 2 / m)

Uchonga

Umbala: Ubumnyama obumnyama obumnyama; obomvu obomvu kwiziqhezu ezincinci; buluhlaza kwimimorite
Umkhuba we-Crystal: I-platy platy to curriidal crystals
Ukucoca: {0001} kakuhle, {1010} ukuhlukana
Ukuphuka: I-Subconchoidal
Ubunzima be-Mohs: 7½-8
Luster: I-Vitreous
I-Streak: obomvu obomvu
Ukungafani: Ukwahlukana
bekukubi ngqo: 3.84
Iimpawu zengqondo: Uniaxial (-)
I-index ye-Refractive: nω = 1.807 (2), nε = 1.79 (1)
I-Pleochroism: O = i-gray gray; E = grey

WaseHibonite, waseMadagascar

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