Log InRegister
Quick Links : The Mindat ManualThe Rock H. Currier Digital LibraryMindat Newsletter [Free Download]
Home PageAbout MindatThe Mindat ManualHistory of MindatCopyright StatusWho We AreContact UsAdvertise on Mindat
Donate to MindatCorporate SponsorshipSponsor a PageSponsored PagesMindat AdvertisersAdvertise on Mindat
Learning CenterWhat is a mineral?The most common minerals on earthInformation for EducatorsMindat ArticlesThe ElementsThe Rock H. Currier Digital LibraryGeologic Time
Minerals by PropertiesMinerals by ChemistryAdvanced Locality SearchRandom MineralRandom LocalitySearch by minIDLocalities Near MeSearch ArticlesSearch GlossaryMore Search Options
Search For:
Mineral Name:
Locality Name:
Keyword(s):
 
The Mindat ManualAdd a New PhotoRate PhotosLocality Edit ReportCoordinate Completion ReportAdd Glossary Item
Mining CompaniesStatisticsUsersMineral MuseumsClubs & OrganizationsMineral Shows & EventsThe Mindat DirectoryDevice SettingsThe Mineral Quiz
Photo SearchPhoto GalleriesSearch by ColorNew Photos TodayNew Photos YesterdayMembers' Photo GalleriesPast Photo of the Day GalleryPhotography

Dimorphite

A valid IMA mineral species - grandfathered
This page is currently not sponsored. Click here to sponsor this page.
Hide all sections | Show all sections

About DimorphiteHide

Formula:
As4S3
Colour:
Orange-yellow
Lustre:
Adamantine
Hardness:
Specific Gravity:
3.58
Crystal System:
Orthorhombic
Name:
From the Greek for two and form, for the two forms that the mineral supposedly occurs in.
Dimorph of:
This page provides mineralogical data about Dimorphite.


Unique IdentifiersHide

Mindat ID:
1292
Long-form identifier:
mindat:1:1:1292:4
GUID
(UUID V4):
21f66dc0-cd67-45cd-842b-4ee09ed81475

IMA Classification of DimorphiteHide

Classification of DimorphiteHide

2.FA.10

2 : SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulfantimonites, sulfbismuthites, etc.)
F : Sulfides of arsenic, alkalies; sulfides with halide, oxide, hydroxide, H2O
A : With As, (Sb), S
2.6.1.1

2 : SULFIDES
6 : AmBnXp, with (m+n):p = 4:3
3.7.3

3 : Sulphides, Selenides, Tellurides, Arsenides and Bismuthides (except the arsenides, antimonides and bismuthides of Cu, Ag and Au, which are included in Section 1)
7 : Sulphides etc. of V, As, Sb and Bi

Mineral SymbolsHide

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

SymbolSourceReference
DimIMA–CNMNCWarr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43

Physical Properties of DimorphiteHide

Adamantine
Transparency:
Transparent
Colour:
Orange-yellow
Streak:
Yellow
Hardness:
1½ on Mohs scale
Tenacity:
Brittle
Cleavage:
None Observed
Density:
3.58 g/cm3 (Measured)    3.60 g/cm3 (Calculated)

Optical Data of DimorphiteHide

Type:
Biaxial (+)
Dispersion:
strong

Chemistry of DimorphiteHide

Mindat Formula:
As4S3

Crystallography of DimorphiteHide

Crystal System:
Orthorhombic
Class (H-M):
mmm (2/m 2/m 2/m) - Dipyramidal
Space Group:
Pnma
Setting:
Pnma
Cell Parameters:
a = 11.24 Å, b = 9.90 Å, c = 6.56 Å
Ratio:
a:b:c = 1.135 : 1 : 0.663
Unit Cell V:
729.97 ų (Calculated from Unit Cell)
Z:
4
Morphology:
Dipyramidal crystals.

Crystal StructureHide

Load
Unit Cell | Unit Cell Packed
2x2x2 | 3x3x3 | 4x4x4
Show
Big Balls | Small Balls | Just Balls | Spacefill
Polyhedra Off | Si Polyhedra | All Polyhedra
Remove metal-metal sticks
Display Options
Black Background | White Background
Perspective On | Perspective Off
2D | Stereo | Red-Blue | Red-Cyan
View
CIF File    Best | x | y | z | a | b | c
Rotation
Stop | Start
Labels
Console Off | On | Grey | Yellow
IDSpeciesReferenceLinkYearLocalityPressure (GPa)Temp (K)
0014106DimorphiteWhitfield H J (1973) Crystal structure of the beta-form of tetraarsenic trisulphide Journal of the Chemical Society, Dalton Transactions, Inorganic Chemistry 1973 1737-17381973synthetic0293
CIF Raw Data - click here to close

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
4.89 Å(100)
2.14 Å(50)
1.620 Å(50)
3.91 Å(40)
5.64 Å(30)
3.07 Å(25)
2.94 Å(25)

Geological EnvironmentHide

Paragenetic Mode(s):
Paragenetic ModeEarliest Age (Ga)
Stage 3a: Earth’s earliest Hadean crust>4.50
11 : Volcanic fumarole minerals; reduced phases (see also #45)
Stage 7: Great Oxidation Event<2.4
47h : [Near-surface oxidized, dehydrated minerals]
Geological Setting:
Secondary zone of ore deposits.

Type Occurrence of DimorphiteHide

Place of Conservation of Type Material:
Natural History Museum, Paris, France, 50.588, 99.492.
The Natural History Museum, London, England, 1937,1432.
Geological Setting of Type Material:
Fumarolic vent
Reference:
Scacchi, A. (1849) Memoria IIIa. Esame delle sostanze che si formano presso i fumaroli della Regione Flegrea. Memorie Geologiche sulla Campania 3a, (Napoli), 83-131.

Synonyms of DimorphiteHide

Other Language Names for DimorphiteHide

Simplified Chinese:硫砷矿
Spanish:Dimorphita

Common AssociatesHide

Associated Minerals Based on Photo Data:
6 photos of Dimorphite associated with RealgarAs4S4
1 photo of Dimorphite associated with BonazziiteAs4S4

Related Minerals - Strunz-mindat GroupingHide

2.FA.AnorpimentAs2S3Tric. 1 : P1
2.FA.BonazziiteAs4S4Mon. 2/m : B2/b
2.FA.ParadimorphiteAs4S3Orth. mmm (2/m 2/m 2/m) : Pnma
2.FA.05DuranusiteAs4SOrth. mmm (2/m 2/m 2/m) : Pmna
2.FA.15bPararealgarAs4S4Mon. 2/m : P21/b
2.FA.15aRealgarAs4S4Mon. 2/m
2.FA.15dUM1970-18-S:AsAs4S4Mon. 2/m : B2/b
2.FA.20AlacrániteAs8S9Mon. 2/m : P2/b
2.FA.25UzoniteAs4S5Mon. 2/m : P21/m
2.FA.30LaphamiteAs2Se3Mon. 2/m
2.FA.30OrpimentAs2S3Mon. 2/m
2.FA.35GetchelliteAsSbS3Mon. 2/m : P21/b
2.FA.40Wakabayashilite[(As,Sb)6S9][As4S5]Orth. mm2 : Pna21
2.FA.40KalgoorlieiteAs2Te3Mon. 2/m : B2/m

Other InformationHide

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 DimorphiteHide

References for DimorphiteHide

Reference List:

Localities for DimorphiteHide

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.
Chile
 
  • Atacama
    • Copiapó Province
      • Tierra Amarilla
        • Pampa Larga mining district
          • Alacrán
Greece
 
  • Attica
    • East Attica
      • Lavreotiki
        • Lavrion Mining District
          • Plaka
Italy (TL)
 
  • Campania
    • Naples
      • Pozzuoli
      • Somma-Vesuvius Complex
Peru
 
  • Pasco
    • Pasco province
      • Cerro de Pasco
Russia
 
  • Sverdlovsk Oblast
    • Serovsky District
      • Turya river
        • Tur'insk
 
Mineral and/or Locality  
Mindat Discussions Facebook Logo Instagram Logo Discord Logo
Mindat.org is an outreach project of the Hudson Institute of Mineralogy, a 501(c)(3) not-for-profit organization.
Copyright © mindat.org and the Hudson Institute of Mineralogy 1993-2024, except where stated. Most political location boundaries are © OpenStreetMap contributors. Mindat.org relies on the contributions of thousands of members and supporters. Founded in 2000 by Jolyon Ralph.
Privacy Policy - Terms & Conditions - Contact Us / DMCA issues - Report a bug/vulnerability Current server date and time: March 19, 2024 11:26:04 Page updated: January 3, 2024 13:54:45
Go to top of page