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Damiaoite

A valid IMA mineral species

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Edit Add Synonym Edit CIF structures Clear Cache

Formula:

PtIn₂

Colour:

Steel black

Lustre:

Metallic

Hardness:

Specific Gravity:

10.95 (Calculated)

Crystal System:

Isometric

Name:

For its locality, the Damiao deposit, Damiao, Luanping Co., Chengde Prefecture, Hebei Province, China.

Type Locality:

ⓘ PGE occurrence, Damiao complex, Luanping County, Chengde, Hebei, China

This page provides mineralogical data about Damiaoite.

Hide all sections | Show all sections

Unique IdentifiersHide

Mindat ID:

6897

Long-form identifier:

mindat:1:1:6897:6

GUID
(UUID V4):

3cfda34d-0d11-48ec-93b5-945380ca84c4

Classification of DamiaoiteHide

IMA status:

Approved

First published:

1997

Strunz-mindat (2023):

1.AG.55

1 : ELEMENTS (Metals and intermetallic alloys; metalloids and nonmetals; carbides, silicides, nitrides, phosphides)
A : Metals and Intermetallic Alloys
G : PGE-metal alloys

Dana 7th ed.:

1.2.15.1

Mineral SymbolsHide

As of 2021 there are now IMA–CNMNC approved mineral symbols (abbreviations) for each mineral species, useful for tables and diagrams.

Symbol	Source	Reference
Dam	IMA–CNMNC	Warr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43

Physical Properties of DamiaoiteHide

Lustre:

Metallic

Transparency:

Opaque

Colour:

Steel black

Streak:

Black

Hardness:

5 on Mohs scale

Hardness:

VHN₅₀=434 - 529 kg/mm² - Vickers

Cleavage:

None Observed

Fracture:

None observed

Density:

10.95 g/cm³ (Calculated)

Optical Data of DamiaoiteHide

Type:

Isotropic

Reflectivity:

Wavelength	R
400nm	65.4%
440nm	49.3%
480nm	49.9%
520nm	55.0%
560nm	62.5%
600nm	70.2%
640nm	77.7%
680nm	84.2%
700nm	86.9%

Graph shows reflectance levels at different wavelengths (in nm). Top of box is 100%. Peak reflectance is 86.9%.

Colour in reflected light:

Bright white with a yellowish tint

Internal Reflections:

None

Pleochroism:

Non-pleochroic

Chemical Properties of DamiaoiteHide

Formula:

PtIn₂

Elements listed:

In, Pt - search for minerals with similar chemistry

Crystallography of DamiaoiteHide

Crystal System:

Isometric

Class (H-M):

m3m (4/m 3 2/m) - Hexoctahedral

Space Group:

Fm3m

Setting:

Fm3m

Cell Parameters:

a = 6.364(3) Å

Unit Cell V:

257.75 Å³ (Calculated from Unit Cell)

Crystal StructureHide

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Data courtesy of the American Mineralogist Crystal Structure Database. Click on an AMCSD ID to view structure

ID	Species	Reference	Link	Year	Locality	Pressure (GPa)	Temp (K)
0011712	Damiaoite	Wyckoff R W G (1963) Second edition. Interscience Publishers, New York, New York Fluorite structure Crystal Structures 1 239-444		1963		0	293
0011978	Damiaoite	Yu Z (1997) Damiaoite - a new native indium and platinum alloy Fluorite structure Acta Geologica Sinica 71 328-331		1997		0	293

CIF Raw Data - click here to close

data_global
_chemical_name_mineral 'Damiaoite'
loop_
_publ_author_name
'Wyckoff R W G'
_journal_name_full 'Crystal Structures'
_journal_volume 1 
_journal_year 1963
_journal_page_first 239
_journal_page_last 444
_publ_section_title
;
 Second edition. Interscience Publishers, New York, New York
 Fluorite structure
;
_database_code_amcsd 0011712
_chemical_formula_sum 'Pt In2'
_cell_length_a 6.353
_cell_length_b 6.353
_cell_length_c 6.353
_cell_angle_alpha 90
_cell_angle_beta 90
_cell_angle_gamma 90
_cell_volume 256.411
_exptl_crystal_density_diffrn     11.002
_symmetry_space_group_name_H-M 'F m 3 m'
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loop_
_atom_site_label
_atom_site_fract_x
_atom_site_fract_y
_atom_site_fract_z
Pt   0.00000   0.00000   0.00000
In   0.25000   0.25000   0.25000

X-Ray Powder DiffractionHide

Powder Diffraction Data:

d-spacing	Intensity
2.25 Å	(100)
1.299 Å	(80)
1.006 Å	(70)
1.92 Å	(60)
1.59 Å	(60)
1.125 Å	(60)
3.67 Å	(50)

Geological EnvironmentHide

Paragenetic Mode(s):

Paragenetic Mode	Earliest Age (Ga)
Stage 3a: Earth’s earliest Hadean crust	>4.50
7 : Ultramafic igneous rocks
Stage 3b: Earth’s earliest hydrosphere	>4.45
12 : Hadean hydrothermal subsurface sulfide deposits (see also #33)

Type Occurrence of DamiaoiteHide

Type Locality:

ⓘ PGE occurrence, Damiao complex, Luanping County, Chengde, Hebei, China

General Appearance of Type Material:

Intimately associated with yixunite. Immiscible gloubles 1-2 mm in diameter.

Place of Conservation of Type Material:

National Museum for Geology, Beijing, China, M10120.

Geological Setting of Type Material:

Cobalt- and copper-bearing platinum ore vein of a contact metasomatic deposit (a contact zone of pyroxenite with plagioclasite).

Associated Minerals at Type Locality:

Reference:

Yu, Z. (1997) Damiaoite - A new native indium and platinum alloy. Acta Geologia Sinica: 71(4): 329-331.

Download:

https://rruff.info/rruff_1.0/uploads/AGS71_328.pdf

Synonyms of DamiaoiteHide

IMA1995-041

Other Language Names for DamiaoiteHide

German:Damiaoit

Russian:Дамяоит

Spanish:Damiaoita

Related Minerals - Strunz-mindat Grouping Hide

1.AG.	Michitoshiite-(Cu)	Rh(Cu_1-xGe_x)	Iso. m3m (4/m 3 2/m) : Pm3m
1.AG.	Palladothallite	Pd₃Tl	Tet. 4/mmm (4/m 2/m 2/m) : I4/mmm
1.AG.	Sluzhenikinite	Pd₁₅(Sb_7-xSn_x)	Mon. 2/m : P2₁/m
1.AG.	Driekopite	PtBi	Hex. 6/mmm (6/m 2/m 2/m) : P6₃/mmc
1.AG.	Sidorovite	Fe₃Pt	Iso. m3m (4/m 3 2/m) : Pm3m
1.AG.05	Hexaferrum	(Fe,Os,Ru,Ir)	Hex. 6/mmm (6/m 2/m 2/m) : P6₃/mmc
1.AG.05	Garutiite	(Ni,Fe,Ir)	Hex. 6/mmm (6/m 2/m 2/m) : P6₃/mmc
1.AG.10	Atokite	(Pd,Pt)₃Sn	Iso. m3m (4/m 3 2/m) : Fm3m
1.AG.10	Rustenburgite	(Pt,Pd)₃Sn	Iso. m3m (4/m 3 2/m) : Fm3m
1.AG.10	Zvyagintsevite	Pd₃Pb	Iso. m3m (4/m 3 2/m) : Pm3n
1.AG.15	Taimyrite	(Pd,Cu,Pt)₃Sn	Orth.
1.AG.15	Tatyanaite	(Pt,Pd,Cu)₉Cu₃Sn₄	Orth.
1.AG.20	Paolovite	Pd₂Sn	Orth. mmm (2/m 2/m 2/m)
1.AG.25	Plumbopalladinite	Pd₃Pb₂	Hex. 6mm : P6₃mc
1.AG.25	Stannopalladinite	(Pd,Cu)₃Sn₂	Hex.
1.AG.30	Cabriite	Pd₂CuSn	Orth. mmm (2/m 2/m 2/m) : Pmmm
1.AG.35	Chengdeite	Ir₃Fe	Iso. m3m (4/m 3 2/m)
1.AG.35	Isoferroplatinum	Pt₃Fe	Iso. m3m (4/m 3 2/m)
1.AG.40	Ferronickelplatinum	Pt₂FeNi	Tet.
1.AG.40	Tetraferroplatinum	PtFe	Tet. 4/mmm (4/m 2/m 2/m) : P4/mmm
1.AG.40	Tulameenite	Pt₂CuFe	Tet. 4/mmm (4/m 2/m 2/m) : P4/mmm
1.AG.45	Hongshiite	PtCu	Trig.
1.AG.45	Skaergaardite	PdCu	Iso. m3m (4/m 3 2/m) : Pm3m
1.AG.50	Yixunite	Pt₃In	Iso. m3m (4/m 3 2/m)
1.AG.60	Niggliite	PtSn	Hex. 6/mmm (6/m 2/m 2/m) : P6₃/mmc
1.AG.65	Bortnikovite	Pd₄Cu₃Zn	Tet. 4/mmm (4/m 2/m 2/m) : P4/mmm
1.AG.70	Nielsenite	PdCu₃	Tet. 4mm : P4mm
1.AG.75	Norilskite	(Pd,Ag)_2xPb (x = 0.08 - 0.11)	Trig. 3 2 : P3₁ 2 1

Other InformationHide

Magnetism:

Non-Magnetic

Notes:

Insoluble in HCl, HNO3, HF and H3PO4.

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 DamiaoiteHide

Reference List:

Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)

Yu Zuxiang (1997) Damiaoite - A new native indium and platinum alloy. Acta Geologia Sinica: 71(4): 329-331. (in Chinese with English abstract)

Yu, Z. (1997) Yixunite and damiaoite - a twin of new native alloys of indium and platinum from the Yanshan Mountains. Acta Geologica Sinica: 71: 480-485.

Jambor, J.L., Puziewicz, J., Roberts, A.C. (1998) New mineral names. American Mineralogist: 83: 652-656.

Mandarino, J. (2001) New Minerals 1995-1999. The Canadian Mineralogist Special Publication 4: 57. (abstract)

Internet Links for DamiaoiteHide

mindat.org URL:

https://www.mindat.org/min-6897.html
Please feel free to link to this page.

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External Links:

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Raman and XRD data at RRUFF project

References and PDF downloads at RRUFF project

American Mineralogist Crystal Structure Database

Handbook of Mineralogy page PDF

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Localities for DamiaoiteHide

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

- 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.


China
Hebei Chengde ⓘ Garnet pyroxenite occurrence	Yu, Z., Cheng, F., Ma, H. (2009): Lisiguangite, CuPtBiS3, a new platinum-group mineral from the Yanshan Mountains, Hebei, China. Acta Geologica Sinica, 83, 238-244.
Luanping County Damiao complex ⓘ PGE occurrence (TL)	Yu Zuxiang (1997): Acta Geologia Sinica 71(4), 329-331.

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Damiaoite

Unique IdentifiersHide

Classification of DamiaoiteHide

Mineral SymbolsHide

Physical Properties of DamiaoiteHide

Optical Data of DamiaoiteHide

Chemical Properties of DamiaoiteHide

Crystallography of DamiaoiteHide

Crystal StructureHide

X-Ray Powder DiffractionHide

Geological EnvironmentHide

Type Occurrence of DamiaoiteHide

Synonyms of DamiaoiteHide

Other Language Names for DamiaoiteHide

Related Minerals - Strunz-mindat GroupingHide

Other InformationHide

References for DamiaoiteHide

Internet Links for DamiaoiteHide

Localities for DamiaoiteHide

Locality ListHide

Related Minerals - Strunz-mindat Grouping Hide