Tamaite	A valid IMA mineral species	(Ca,K,Na)_xMn₆(Si,Al)₁₀O₂₄(OH)₄ · nH₂O (x = 1-2; n = 7-11)
Tamboite	A valid IMA mineral species	Fe₃³⁺(OH)(H₂O)₂(SO₄)(Te⁴⁺O₃)₃(Te⁴⁺O(OH)₂)(H₂O)₃

IMA Classification of DamiaoiteHide

IMA status:

Approved

Approval year:

1995

First published:

1997

Type description reference:

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

Classification of DamiaoiteHide

Strunz-mindat (2026):

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 for Standard
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	R₁ (%)
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). Peak reflectance is 86.9%.

Colour in reflected light:

Bright white with a yellowish tint

Internal Reflections:

None

Pleochroism:

Non-pleochroic

Chemistry of DamiaoiteHide

Mindat Formula:

PtIn₂

Element Weights:

Element	% weight
In	54.068 %
Pt	45.932 %

Calculated from ideal end-member formula.

Elements listed:

In, Pt - search for minerals with similar chemistry

Crystallography of DamiaoiteHide

Crystal System:

Isometric

Class (H-M):

m3m(4/m32/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)
0011978	Damiaoite	Yu Z (1997) Damiaoite - a new native indium and platinum alloy Fluorite structure Acta Geologica Sinica 71 328-331		1997		0	293
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

CIF Raw Data - click here to close

data_global
_chemical_name_mineral 'Damiaoite'
loop_
_publ_author_name
'Yu Z'
_journal_name_full 'Acta Geologica Sinica'
_journal_volume 71 
_journal_year 1997
_journal_page_first 328
_journal_page_last 331
_publ_section_title
;
 Damiaoite - a new native indium and platinum alloy
 Fluorite structure
;
_database_code_amcsd 0011978
_chemical_formula_sum 'Pt In2'
_cell_length_a 6.364
_cell_length_b 6.364
_cell_length_c 6.364
_cell_angle_alpha 90
_cell_angle_beta 90
_cell_angle_gamma 90
_cell_volume 257.745
_exptl_crystal_density_diffrn     10.945
_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.

Synonyms of DamiaoiteHide

IMA1995-041

Other Language Names for DamiaoiteHide

Dutch:Damiaoiet

German:Damiaoit

Russian:Дамяоит

Spanish:Damiaoita

Related Minerals - Strunz-mindat Grouping Hide

1.AG.	Sluzhenikinite	Pd₁₅(Sb_7-xSn_x)	Mon. 2/m : P2₁/m
1.AG.	Palladothallite	Pd₃Tl	Tet. 4/mmm(4/m2/m2/m) : I4/mmm
1.AG.	Driekopite	PtBi	Hex. 6/mmm(6/m2/m2/m) : P6₃/mmc
1.AG.	Sidorovite	Fe₃Pt	Iso. m3m(4/m32/m) : Pm3m
1.AG.	Michitoshiite-(Cu)	Rh(Cu_1-xGe_x)	Iso. m3m(4/m32/m) : Pm3m
1.AG.05	Hexaferrum	(Fe,Os,Ru,Ir)	Hex. 6/mmm(6/m2/m2/m) : P6₃/mmc
1.AG.05	Garutiite	(Ni,Fe,Ir)	Hex. 6/mmm(6/m2/m2/m) : P6₃/mmc
1.AG.10	Zvyagintsevite	Pd₃Pb	Iso. m3m(4/m32/m) : Pm3n
1.AG.10	Rustenburgite	(Pt,Pd)₃Sn	Iso. m3m(4/m32/m) : Fm3m
1.AG.10	Atokite	(Pd,Pt)₃Sn	Iso. m3m(4/m32/m) : Fm3m
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/m2/m2/m)
1.AG.25	Stannopalladinite	(Pd,Cu)₃Sn	Orth.
1.AG.25	Plumbopalladinite	Pd₃Pb₂	Hex. 6mm : P6₃mc
1.AG.30	Cabriite	Pd₂CuSn	Orth. mmm(2/m2/m2/m) : Pmmm
1.AG.35	Isoferroplatinum	Pt₃Fe	Iso. m3m(4/m32/m)
1.AG.35	Chengdeite	Ir₃Fe	Iso. m3m(4/m32/m)
1.AG.40	Tetraferroplatinum	PtFe	Tet. 4/mmm(4/m2/m2/m) : P4/mmm
1.AG.40	Tulameenite	Pt₂CuFe	Tet. 4/mmm(4/m2/m2/m) : P4/mmm
1.AG.40	Ferronickelplatinum	Pt₂FeNi	Tet.
1.AG.45	Skaergaardite	PdCu	Iso. m3m(4/m32/m) : Pm3m
1.AG.45	Hongshiite	PtCu	Trig.
1.AG.50	Yixunite	Pt₃In	Iso. m3m(4/m32/m)
1.AG.60	Niggliite	PtSn	Hex. 6/mmm(6/m2/m2/m) : P6₃/mmc
1.AG.65	Bortnikovite	Pd₄Cu₃Zn	Tet. 4/mmm(4/m2/m2/m) : P4/mmm
1.AG.70	Nielsenite	PdCu₃	Tet. 4mm : P4mm
1.AG.75	Norilskite	(Pd,Ag)_2xPb (x = 0.08 - 0.11)	Trig. 32 : P3₁21

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.

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

Mineral Dealers:

Buy from D. Joyce minerals

References for DamiaoiteHide

Reference List:

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.

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

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)

(2005) Damiaoite. Handbook of Mineralogy. Mineralogical Society of America

Localities for DamiaoiteHide

Showing 2 localities.

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.

Hide all sections | Show all sections

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 Fengning County Sandao village (Tao District) ⓘ Garnet pyroxenite occurrence	Yu et al. (2009)
Luanping County Damiao complex ⓘ PGE occurrence (TL)	Yu Zuxiang (1997)

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Damiaoite

Unique IdentifiersHide

Similar NamesHide

IMA Classification of DamiaoiteHide

Classification of DamiaoiteHide

Mineral SymbolsHide

Physical Properties of DamiaoiteHide

Optical Data of DamiaoiteHide

Chemistry 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

Internet Links for DamiaoiteHide

References for DamiaoiteHide

Localities for DamiaoiteHide

Locality ListHide

Related Minerals - Strunz-mindat Grouping Hide