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・ Pseudobombur
・ Pseudoborbo
・ Pseudoborbo bevani
・ Pseudobornia
・ Pseudoborocera
・ Pseudobotrys
・ Pseudobracca
・ Pseudobrama simoni
・ Pseudobranch
・ Pseudobrephos
・ Pseudobrevicoceras
・ Pseudobrickellia
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Pseudobrookite
・ Pseudobryomima
・ Pseudobryophila
・ Pseudobryopsis
・ Pseudobscura
・ Pseudobufo subasper
・ Pseudobulb
・ Pseudobulbar affect
・ Pseudobulbar palsy
・ Pseudobulweria
・ Pseudobunaea
・ Pseudobunaea alinda
・ Pseudobunocephalus
・ Pseudobutyrivibrio xylanivorans
・ Pseudocaeciliidae


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Pseudobrookite : ウィキペディア英語版
Pseudobrookite

Pseudobrookite is an iron titanium oxide mineral with formula: Fe2TiO5〔 or (Fe3+,Fe2+)2(Ti,Fe2+)O5.〔
==Discovery and occurrence==
Pseudobrookite was first described in 1878 for an occurrence in Uroi Hill (Arany Hill), Simeria, Hunedoara County, Romania. The name is from Greek ψευδής, for false, and brookite because of its misleading similar appearance to brookite.〔
Pseudobrookite forms as pneumatolytic deposition and alteration within titanium-rich volcanic rocks such as andesite, rhyolite or basalt. It may be associated with xenoliths contained in the volcanics. It also commonly occurs in lithophysae.〔
It occurs associated with hematite, magnetite, bixbyite, ilmenite, enstatite-ferrosilite, tridymite, quartz, sanidine, topaz, spessartine, beryl, mica, cassiterite and apatite.〔
Occurrences include:〔
* Mayen in the Eifel district, Germany
* Mont Dore, Puy-de-Dome, France
* Vesuvius, Italy
* Jumilla, Murcia Province, Spain
* Fayal and São Miguel Islands, Azores
* Kilimanjaro, Tanzania;
* Reunion Island
* the Thomas Range, Juab County, Utah
* Crater Lake and Lemolo Lake, Oregon
* the Black Range, Sierra County, New Mexico
* Cerro los Remedios, Durango, Mexico

抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)
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