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Eveslogite
Eveslogite, ((Ca,K,Na,Sr,Ba)48()(F,OH,Cl)14), is a mineral found on Mt. Eveslogchorr in khibiny Massif, Kola peninsula, Russia. The name derives from the name of where it was encountered Mt. Evesglochorr. This mineral occurs as an anchimonomineral veinlet that cross-cuts poikilitic nepheline syenite (Hawthorne 2012). This mineral appears to resemble Yuksporite since it forms similar placated fine fibrous of approximately 0.05 to 0.005mm that aggregates outwardly. The color of Eveslogite is yellow or rather light brown. In addition it is a semitransparent mineral that has a white streak and a vitreous luster. Its crystal formation is monoclinic and possesses a hardness (Mohs) of 5. This newly discovered mineral belongs to the Astrophyllite group of minerals and contains structures that are composed of Titanosilicate layers (Krivovichev et al., 2004). Limited information about this mineral exists due to the few research studies carried out since its recent discovery. Regarding to its effect on heat and the of this mineral to the health of an individual has not been explained effectively, thus, ample opportunity for further investigation and research still exists.
==Introduction==
Eveslogite is a monoclinic-prismatic mineral that contains a trilogy of elements, which includes: aluminum, calcium, barium, chlorine hydrogen, fluorine, manganese, iron, niobium, potassium, rubium, oxygen, silicon tantalum, sodium titanium and zirconium. It is usually found at Mount Eveslogchorr, Kola Peninsula, Khibina alkaline massif, in Russia. This mineral adds to the rapidly expanding class of the porous materials that are vital in gas separation, catalysis, optoelectronics, and in ion exchange processes. According to the article Crystal Research and Technology by Depmeier that seeks to further explain the properties of Eveslogite, this mineral is in almost all aspect similar to Yuksporite, in fact this article explains that it is almost impossible to distinguish these two minerals by looking at their appearance. However, when compared to Yuksporite, Eveslogite is much poorer in Ba content and it possesses different thermal capability. This mineral was Yuri Men’shikov in the year 1998. Below is a photo showing the some of the physical features of Eveslogite such as color.
Fig 1. Retrieved from Rocks & Minerals (2012)
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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