Hibonite, laga bilaabo Madagascar

Hibonite Madagascar

Project Info

Project Description

Hibonite, laga bilaabo Madagascar

video

Hibonite (Ca, Ce) (Al, Ti, Mg) 12O19) waa macdan madow oo madow oo leh adag tahay 7.5-8.0 iyo qaabdhismeedka mitirka laba geesoodka ah. Waa dhif, laakiin waxaa laga helaa dhagaxyada sare ee metamorphic on Madagascar. Qaar ka mid ah daawooyinka la isku qurxiyo ee maadadaha celceliska ah waxay ka kooban yihiin hiboon. Hibonite sidoo kale waa macdan caadi ah oo ka mid ah isweydaarsiyada Ca-Al (CALA) laga helay qaar ka mid ah meteoritiyada chondritics. Hibonite wuxuu si dhow ula xiriira hibonite-Fe (IMA 2009-027, ((Fe, Mg) Al12O19)) macdanta wax ka beddelka mitirka Allende.

Gacanyar dhif ah, oo la yiraahdo Paul Hibon, oo ah farsamayaqaan Faransiis ah oo ku yaalla Madagascar, kaas oo ka helay macdanta june 1953. Waxa uu u soo diray jaangooyooyin qaar ka mid ah shaybaadhka Jean Behier si loo sameeyo imtixaan isla sannadkaas. Behier wuxuu u aqoonsaday macdan macquul ah oo cusub wuxuuna siiyey magaca shaqada "hibonite". Waxa uu sambalka u gudbiyay C. Guillem, Labratoire de Minéralogie de la Sorbonne, Paris, France si loo sii falanqeeyo. Waxay keentay in sharaxaad ka mid ah macdanta cusub ee Curien et al (1956).

Hibonite laga soo bilaabo Esiva, Fort Dauphin, Tuléar, Madagascar
Madow, adag oo adag ayaa laga joojiyay matrix-ka qorraxda qotodheer ee maskaxda ku leh qulqulka paljioclase. Xiriirrada laqari karo ee ku jira sawirka waxaa ka mid ah "corundum, spinel" iyo "thorianite". Waxaa lagu sharaxay 1956. Ma aha in lagu qasbo Hibbenite. Hibonite waxaa lagu magacaabaa P. Hibon, kaas oo soo helay macdanta.

General

Qaybta: Macdanta Oxide
Caanaha: (Ca, Ce) (Al, Ti, Mg) 12O19
Nidaamka Crystal: Hexagonal
Fasalka Crystal: Dipyramidal Dihexagon (6 / mmm)
Calaamadda HM: (6 / m 2 / m 2 / m)

Aqoonsiga

Midab: madow madow si madow; caleemaha casaanka ah ee caleemaha khafiifka ah; buluug ee dhacdo dhacdo dhacdo
Caqli-Caddaan: Cabbiraadda Prismatic si aad u ilaaliso kareemada pyramidal
Xigasho: {0001} wanaagsan, {1010} waa qayb ka mid ah
Jajabka: Subconchoidal
Mohs kobcinta adagaanta: 7½-8
Luqad: Vitreous
Xarrago: bunni midab leh
Ilka-xannaaneynta: Isku-dhafka
cuf gaar ah: 3.84
Guryaha dabiiciga ah: Uniaxial (-)
Calaamadin caan ah: nn = 1.807 (2), n = 1.79 (1)
Pleochroism: O = baraf cad; E = Cawl

Hibonite, laga bilaabo Madagascar

iibso dhagaxyada dabiiciga ah ee dukaankeenna

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