UHibonite, waseMadagascar

I-Hibonite Madagascar

Ulwazi lwamaGemstone

Amathegi

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UHibonite, waseMadagascar

ividiyo

I-Hibonite ((Ca, Ce) (Al, Ti, Mg) i-12O19) iyimaminerali emnyama ebomvu ngobunzima be-7.5-8.0 kanye nesakhiwo sekristal esine-hexagonal. Kuyinto engavamile, kodwa itholakala emadwaleni aphezulu e-metamorphic eMadagascar. Amanye okusanhlamvu okusawoti emgodini omdala ahlanganisa i-hibonite. I-Hibonite nayo iyimbumbulu evamile ku-inc-Ca-Al-rich inclusions (i-CAIs) etholakala kwamanye ama-meteorites e-chondritic. Hibonite ihlobene eduze hibonite-Fe (IMA 2009-027, ((Fe, MG) Al12O19)) i amaminerali ekuguqulweni kusukela Allende meteorite.

Isigameko esingavamile kakhulu, esibizwa ngoPaul Hibon, umhloli waseFrance eMadagascar, owathola amaminerali ngoJune 1953. Wathumela iphasela ngamanye amasampula kuJean Behier ukuze ahlolwe ngonyaka ofanayo. U-Behier wamuqaphela njengento entsha yamaminerali futhi wawunika igama elithi "hibonite". Wathumela isampula kuC. Guillemin, Labratoire de Minéralogie de la Sorbonne, eParis, eFrance ukuze kuhlaziywe kabanzi. Kwaholela ekuchazeni i-mineral entsha nguCurien et al (1956).

I-Hibonite kusukela eSiva, esifundeni saseFrance Dauphin, eTuléar, eMadagascar
Amakhadi amnyama, amakhanda amisiwe amisiwe ematrikheni enama-limestone ane-calcic palgioclase. Izihlobo ezibonakalayo ngaphakathi kwe-matrix ziyi-corundum, i-spinel ne-thorianite. Kuchazwe ku-1956. Akufanele kudidaniswe ne-Hibbenite. U-Hibonite ubizwa ngegama likaP. Hibon, owathola le mineral.

General

Isigaba: Amaminerali e-oksidi
Ifomu: (Ca, Ce) (Al, Ti, Mg) 12O19
I-Crystal uhlelo: I-Hexagonal
Iglasi le-Crystal: i-dipyramidal ehlanganisiwe (i-6 / mmm)
Uphawu lwe-HM: (6 / m 2 / m 2 / m)

Ubunikazi

Umbala: Ubumnyama obumnyama obumnyama; obomvu obomvu ezindaweni ezincane; okwesibhakabhaka esimweni se-meteorite
Umkhuba we-Crystal: I-platinum ye-Prismatic kuya emakristini amancane e-pyramidal
I-Cleavage: {0001} okuhle, {1010} ukuhlukanisa
Ukuphuka: I-Subconchoidal
I-Mohs yenza ubunzima obukhulu: 7½-8
Luster: Ama-Vitreous
I-Streak: obomvu obomvu
Ukungafani: Ukuzibandakanya
amandla adonsela phansi ethize: 3.84
Izakhiwo ezibonakalayo: Uniaxial (-)
Inkomba ye-Refractive: nω = 1.807 (2), nε = 1.79 (1)
I-Pleochroism: O = i-gray gray; E = grey

UHibonite, waseMadagascar

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