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Hypercinnabar

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About HypercinnabarHide

Formula:
HgS
Colour:
Black with purple cast
Lustre:
Adamantine
Hardness:
3
Specific Gravity:
7.43
Crystal System:
Hexagonal
Name:
In allusion to the fact that the stability field of the species extends to higher temperatures than that of cinnabar or metacinnabar.
Polymorph of:
The high-temperature phase of mercury sulphide, HgS. It shows a slight deficiency in Hg [Clark, 1993 - "Hey's Mineral Index"].
Structurally related to the Wurtzite Group.

Intimately associated with metacinnabar, which it generally resembles.





Classification of HypercinnabarHide

Approved
Approval year:
1978
First published:
1978
2.CD.15b

2 : SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulfantimonites, sulfbismuthites, etc.)
C : Metal Sulfides, M: S = 1: 1 (and similar)
D : With Sn, Pb, Hg, etc.
2.8.8.1

2 : SULFIDES
8 : AmXp, with m:p = 1:1
3.5.2

3 : Sulphides, Selenides, Tellurides, Arsenides and Bismuthides (except the arsenides, antimonides and bismuthides of Cu, Ag and Au, which are included in Section 1)
5 : Sulphides etc. of Hg and Tl

Pronounciation of HypercinnabarHide

Pronounciation:
PlayRecorded byCountry
Jolyon & Katya RalphUnited Kingdom

Physical Properties of HypercinnabarHide

Adamantine
Colour:
Black with purple cast
Streak:
Dark black purple
Hardness:
Cleavage:
None Observed
Fracture:
Irregular/Uneven, Sub-Conchoidal
Density:
7.43 g/cm3 (Measured)    7.54 g/cm3 (Calculated)
Comment:
Measured and calculated using synthetic material

Optical Data of HypercinnabarHide

Type:
Uniaxial (+)
RI values:
nω = 2.610 nε = 2.850
Max Birefringence:
δ = 0.240
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Surface Relief:
Very High
Anisotropism:
Distinct (in oil)
Bireflectance:
None
Colour in reflected light:
Greayish white (in air), brownish grey (in oil)

Chemical Properties of HypercinnabarHide

Formula:
HgS

Crystallography of HypercinnabarHide

Crystal System:
Hexagonal
Cell Parameters:
a = 7.01(3) Å, c = 14.13(7) Å
Ratio:
a:c = 1 : 2.016
Unit Cell V:
601.32 ų (Calculated from Unit Cell)
Z:
12
Comment:
Space group not determined.

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
3.70 Å(70)
3.43 Å(80)
3.08 Å(100)
2.97 Å(60)
2.80 Å(90)
1.980 Å(100)
1.892 Å(100)

Type Occurrence of HypercinnabarHide

Reference:
Potter, R.W. and H.L. Barnes (1978) Phase relations in the binary Hg–S. American Mineralogist: 63: 1143–1152.

Synonyms of HypercinnabarHide

Relationship of Hypercinnabar to other SpeciesHide

Structurally related to group(s):

Common AssociatesHide

Associated Minerals Based on Photo Data:
1 photo of Hypercinnabar associated with MetacinnabarHgS

Related Minerals - Nickel-Strunz GroupingHide

2.CD.05HerzenbergiteSnSOrth. mmm (2/m 2/m 2/m)
2.CD.05TeallitePbSnS2Orth. mmm (2/m 2/m 2/m) : Pnma
2.CD.10AlabanditeMnSIso. m3m (4/m 3 2/m) : Fm3m
2.CD.10AltaitePbTeIso. m3m (4/m 3 2/m) : Fm3m
2.CD.10ClausthalitePbSeIso. m3m (4/m 3 2/m) : Fm3m
2.CD.10GalenaPbSIso. m3m (4/m 3 2/m) : Fm3m
2.CD.10Niningerite(Mg,Fe2+,Mn2+)SIso.
2.CD.10Oldhamite(Ca,Mg)SIso. m3m (4/m 3 2/m) : Fm3m
2.CD.10Keilite(Fe2+,Mg)SIso. m3m (4/m 3 2/m) : Fm3m
2.CD.15aCinnabarHgSTrig. 3 2 : P31 2 1

Related Minerals - Hey's Chemical Index of Minerals GroupingHide

3.5.1CinnabarHgSTrig. 3 2 : P31 2 1
3.5.3MetacinnabarHgSIso. 4 3m : F4 3m
3.5.4ImiteriteAg2HgS2Mon.
3.5.5TiemanniteHgSeIso. 4 3m : F4 3m
3.5.6BalkaniteCu9Ag5HgS8Mon. 2/m : P2/m
3.5.7Danielsite(Cu,Ag)14HgS8Orth.
3.5.8ColoradoiteHgTeIso. m3m (4/m 3 2/m)
3.5.9GortdrumiteCu24Fe2Hg9S23Tric. 1 : P1
3.5.10Polhemusite(Zn,Hg)STet.
3.5.11CarliniteTl2STrig. 3 : R3
3.5.12CrookesiteCu7(Tl, Ag)Se4Tet.
3.5.13SabatieriteCu6TlSe4Orth.
3.5.14PicotpauliteTlFe2S3Orth. mmm (2/m 2/m 2/m) : Cmcm
3.5.15RaguiniteTlFeS2Orth.
3.5.16ThalcusiteTl2Cu3FeS4Tet.
3.5.17BukoviteTl2(Cu,Fe)4Se4Tet.
3.5.18GalliteCuGaS2Tet. 4 2m : I4 2d
3.5.19RoquesiteCuInS2Tet. 4 2m : I4 2d
3.5.20InditeFeIn2S4Iso. m3m (4/m 3 2/m) : Fd3m

Other InformationHide

Health Risks:
Contains mercury - always wash hands after handling. Avoid inhaling dust when breaking. Never lick or ingest. Do not heat in unventilated environment - emits toxic Hg fumes.

References for HypercinnabarHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Potter, R.W. and H.L. Barnes (1978) Phase relations in the binary Hg–S. American Mineralogist: 63: 1143–1152.

Internet Links for HypercinnabarHide

Localities for HypercinnabarHide

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 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 (eg from pseudomorphs.)

All localities listed without proper references should be considered as questionable.
Kyrgyzstan
 
  • Osh Region
[Lapis 1993:11 p11-24]
South Africa
 
  • Limpopo
    • Murchison Range
      • Gravelotte
        • Monarch Cinnabar mine
Cairncross, B., Dixon, R. (1995) Cairncross, B., Dixon, R. (1995) Minerals of South Africa. Geological Society of South Africa, PO Box 44283, Linden 2104, South Africa.
USA (TL)
 
  • California
    • Contra Costa Co.
      • Clayton
        • Mount Diablo (Mt Diablo)
Potter, R.W. and H.L. Barnes (1978) Phase relations in the binary Hg–S. American Mineralogist: 63: 1143–1152.; Clark (1993) Hey's Mineral Index.
  • Michigan
    • Baraga Co.
      • Huron River
Olds, T. (2012) Mercury minerals of the Huron River Uranium Prospect, Baraga County, Michigan. Rocks & Minerals, 87, #2, 134-139.
  • Nevada
    • Nye Co.
      • Toquima Range
        • Manhattan Mining District
          • Manhattan
NBMG Spec. Pub. 31 Minerals of Nevada
 
Mineral and/or Locality  
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