Unnamed (Iron Carbonitride) (original) (raw)

A material that is NOT an approved mineral species

author's formula: Fe9(N0.8C0.4)2

Another Fe nitride after the already known species: roaldite and siderazot.

Found as grain, 6 x 7 microns in size, within inclusions in lower-mantle diamond.

Co-described with associated 'Unnamed (Iron Nitride I)', 'Unnamed (Iron Nitride II)', 'Unnamed (Iron Carbide)', silicon carbide (possibly moissanite), Mn-rich xieite, and other oxide(s). Other, earlier phases coexisting, are nyerereite, nahcolite, calcite, and periclase.

The phase is among a solid solution(s) thay may be described as M5(C,N)3 - M23(C,N)6, with M/(C/N) ratio in the 1.65 to 3.98 range.

Likely formed due to infiltration of liquid metal (with some lighter elements), coming from the outer core to the D" layer.

Unique IdentifiersHide

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Long-form identifier:

mindat:1:1:51706:5

df1e2d0c-c2e6-4105-a9c5-fc8c5d149aea

Chemical Properties of Unnamed (Iron Carbonitride)Hide

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Formula:

Fe9(N,C)2

author's formula: Fe9(N0.8C0.4)2

Other InformationHide

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Health Risks:

No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.

References for Unnamed (Iron Carbonitride)Hide

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Internet Links for Unnamed (Iron Carbonitride)Hide

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Localities for Unnamed (Iron Carbonitride)Hide

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This map shows a selection of localities that have latitude and longitude coordinates recorded. Click on the symbol to view information about a locality. The symbol next to localities in the list can be used to jump to that position on the map.

Locality ListHide

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- This locality has map coordinates listed. - This locality has estimated coordinates. ⓘ - Click for references and further information on this occurrence. ? - Indicates mineral may be doubtful at this locality. - Good crystals or important locality for species. - World class for species or very significant. (TL) - Type Locality for a valid mineral species. (FRL) - First Recorded Locality for everything else (eg varieties). Struck out - Mineral was erroneously reported from this locality. Faded * - Never found at this locality but inferred to have existed at some point in the past (e.g. from pseudomorphs).

All localities listed without proper references should be considered as questionable.