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Placer occurrences (Yanshan micrometeorite), Chengde, Hebei, Chinai
Regional Level Types
Placer occurrences (Yanshan micrometeorite)Group of Occurrences
ChengdePrefecture-level City
HebeiProvince
ChinaCountry

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Latitude & Longitude:
41° North , 117° East (est.)
Estimate based on other nearby localities or region boundaries.
Margin of Error:
~158km
GRN:
N28E64
Type:
Group of Occurrences
Mindat Locality ID:
725
Long-form identifier:
mindat:1:2:725:5
GUID (UUID V4):
0


Placers in the Yanshan area (which are otherwise composed of chromite, ilmenite, zircon, gold, PGE minerals, etc.) have been found to contain abundant spheres of "iron", typically 0.1-0.5 mm in size, which consist of an outer shell of magnetite, wüstite and maghemite and an inner shell of kamacite and taenite. In addition, some spheres have a core which is composed of gupeiite and xifengite.

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Mineral List


13 valid minerals. 2 (TL) - type locality of valid minerals.

Rock Types Recorded


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Alphabetical List Tree Diagram

Detailed Mineral List:

ⓘ Chromite
Formula: Fe2+Cr3+2O4
ⓘ Graphite
Formula: C
ⓘ Gupeiite (TL)
Formula: Fe3Si
Type Locality:
Description: Cosmic dust in placers.
ⓘ 'Hongquiite'
Formula: TiO
ⓘ Ilmenite
Formula: Fe2+TiO3
ⓘ Maghemite
Formula: (Fe3+0.67◻0.33)Fe3+2O4
ⓘ Magnetite
Formula: Fe2+Fe3+2O4
ⓘ Native Copper
Formula: Cu
ⓘ Native Gold
Formula: Au
ⓘ Native Iron
Formula: Fe
ⓘ Native Iron var. Kamacite
Formula: (Fe,Ni)
ⓘ Taenite
Formula: (Ni,Fe)
ⓘ Wüstite
Formula: FeO
ⓘ Xifengite (TL)
Formula: Fe5Si3
Type Locality:
Description: Cosmic dust in placers.
ⓘ Zircon
Formula: Zr(SiO4)

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
ⓘNative Copper1.AA.05Cu
ⓘNative Gold1.AA.05Au
ⓘNative Iron1.AE.05Fe
ⓘvar. Kamacite1.AE.05(Fe,Ni)
ⓘTaenite1.AE.10(Ni,Fe)
ⓘGupeiite (TL)1.BB.30Fe3Si
ⓘXifengite (TL)1.BB.40Fe5Si3
ⓘGraphite1.CB.05aC
Group 4 - Oxides and Hydroxides
ⓘWüstite4.AB.25FeO
ⓘ'Hongquiite'4.AB.35TiO
ⓘChromite4.BB.05Fe2+Cr3+2O4
ⓘMagnetite4.BB.05Fe2+Fe3+2O4
ⓘMaghemite4.BB.15(Fe3+0.67◻0.33)Fe3+2O4
ⓘIlmenite4.CB.05Fe2+TiO3
Group 9 - Silicates
ⓘZircon9.AD.30Zr(SiO4)

List of minerals for each chemical element

CCarbon
Cⓘ GraphiteC
OOxygen
Oⓘ ChromiteFe2+Cr23+O4
Oⓘ HongquiiteTiO
Oⓘ IlmeniteFe2+TiO3
Oⓘ Maghemite(Fe3+0.67◻0.33)Fe23+O4
Oⓘ MagnetiteFe2+Fe23+O4
Oⓘ WüstiteFeO
Oⓘ ZirconZr(SiO4)
SiSilicon
Siⓘ GupeiiteFe3Si
Siⓘ XifengiteFe5Si3
Siⓘ ZirconZr(SiO4)
TiTitanium
Tiⓘ HongquiiteTiO
Tiⓘ IlmeniteFe2+TiO3
CrChromium
Crⓘ ChromiteFe2+Cr23+O4
FeIron
Feⓘ ChromiteFe2+Cr23+O4
Feⓘ GupeiiteFe3Si
Feⓘ IlmeniteFe2+TiO3
Feⓘ Native IronFe
Feⓘ Native Iron var. Kamacite(Fe,Ni)
Feⓘ Maghemite(Fe3+0.67◻0.33)Fe23+O4
Feⓘ MagnetiteFe2+Fe23+O4
Feⓘ Taenite(Ni,Fe)
Feⓘ WüstiteFeO
Feⓘ XifengiteFe5Si3
NiNickel
Niⓘ Native Iron var. Kamacite(Fe,Ni)
Niⓘ Taenite(Ni,Fe)
CuCopper
Cuⓘ Native CopperCu
ZrZirconium
Zrⓘ ZirconZr(SiO4)
AuGold
Auⓘ Native GoldAu

Other Regions, Features and Areas containing this locality

Amur PlateTectonic Plate
AsiaContinent
China
Eurasian Plate

This page contains all mineral locality references listed on mindat.org. This does not claim to be a complete list. If you know of more minerals from this site, please register so you can add to our database. This locality information is for reference purposes only. You should never attempt to visit any sites listed in mindat.org without first ensuring that you have the permission of the land and/or mineral rights holders for access and that you are aware of all safety precautions necessary.

References

Zuxiang Yu (1984): Two new minerals Gupeiite and Xifengite in cosmic dusts from Yanshan. Acta Petrologica Mineralogica et Analytica 3(3), 231-240 (in Chinese with English abstract).
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