Yagiite is a cyclosilicate mineral belonging to the

osumilite Osumilite is a very rare potassium-sodium-iron-magnesium-aluminium silicate mineral. Osumilite is part of the milarite group (also known as the milarite-osumilite group) of cyclosilicates. Characteristics Osumilite chemical formula is .Don S. G ...

group. It was discovered in 1968 in the iron

meteorite A meteorite is a solid piece of debris from an object, such as a comet, asteroid, or meteoroid, that originates in outer space and survives its passage through the atmosphere to reach the surface of a planet or Natural satellite, moon. When the ...

that fell in

Colomera Colomera is a municipality located in the province of Granada, Spain. According to the 2011 census (INE), the city has a population of 1507 inhabitants. Local agriculture includes almonds, olives and citrus. Textiles are also produced in a local ...

in the province of

Granada Granada (,, DIN 31635, DIN: ; grc, Ἐλιβύργη, Elibýrgē; la, Illiberis or . ) is the capital city of the province of Granada, in the autonomous communities of Spain, autonomous community of Andalusia, Spain. Granada is located at the fo ...

(Spain). Named after the Japanese mineralogist Kenzo Yagi, its

CAS Registry Number A CAS Registry Number (also referred to as CAS RN or informally CAS Number) is a unique identification number assigned by the Chemical Abstracts Service (CAS), US to every chemical substance described in the open scientific literature. It inclu ...

is IMA1968-020.

Crystal structure and properties

It is an anhydrous aluminosilicate of sodium and magnesium, which crystallizes in the hexagonal crystalline system with silicate tetrahedra arranged in double rings. In addition to the elements of its formula, it usually carries impurities: such as titanium, chromium, iron, manganese and calcium.

Locations

Found only as an inclusion of silicate inside the iron meteorite of

(Spain), in which yagiite has crystallized in an environment rich in magnesium and associated with other minerals such as diopside, whitlockite, tridymite,

plagioclase Plagioclase is a series of tectosilicate (framework silicate) minerals within the feldspar group. Rather than referring to a particular mineral with a specific chemical composition, plagioclase is a continuous solid solution series, more prope ...

of the type

albite Albite is a plagioclase feldspar mineral. It is the sodium endmember of the plagioclase solid solution series. It represents a plagioclase with less than 10% anorthite content. The pure albite endmember has the formula . It is a tectosilicate. I ...

anorthite Anorthite is the calcium endmember of the plagioclase feldspar mineral series. The chemical formula of pure anorthite is Ca Al2 Si2O8. Anorthite is found in mafic igneous rocks. Anorthite is rare on the Earth but abundant on the Moon. Mineralo ...

, as well as iron-nickel alloys.

References

{{Reflist

External links

Yagiite
in ''mindat.org''.
Yagiite
in ''webmineral.com''.
Yagiite
Handbook of Mineralogy, ''Mineral Data Publishing''. Meteorite minerals Hexagonal minerals Minerals in space group 192 Aluminium minerals Magnesium minerals Sodium minerals Cyclosilicates