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Hypercinnabar

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Formula:
HgS
System:
Hexagonal
Hardness:
3
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 Hypercinnabar

Approved 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
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Type Occurrence of Hypercinnabar

Physical Properties of Hypercinnabar

Hardness (Mohs):
3

Crystallography of Hypercinnabar

Crystal System:
Hexagonal
Cell Parameters:
a = 7.01(3) Å, c = 14.13(7) Å
Ratio:
a:c = 1 : 2.016
Unit Cell Volume:
V 601.32 ų (Calculated from Unit Cell)
Comment:
Space group not determined.
X-Ray Powder Diffraction Data:
d-spacingIntensity
3.70 (70)
3.43 (80)
3.08 (100)
2.97 (60)
2.80 (90)
1.980 (100)
1.892 (100)
(

Optical Data of Hypercinnabar

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

Chemical Properties of Hypercinnabar

Formula:
HgS
Essential elements:
All elements listed in formula:

Relationship of Hypercinnabar to other Species

Structurally related to group(s):
2.CD.05Herzenbergite(Sn,Pb)SnS2
2.CD.05Teallite(Pb,Sn)SnS2
2.CD.10AlabanditeMnS
2.CD.10AltaitePbTe
2.CD.10ClausthalitePbSe
2.CD.10GalenaPbS
2.CD.10Niningerite(Mg,Fe2+,Mn2+)S
2.CD.10Oldhamite(Ca,Mg)S
2.CD.10Keilite(Fe2+,Mg)S
2.CD.15aCinnabarHgS
3.5.1CinnabarHgS
3.5.3MetacinnabarHgS
3.5.4ImiteriteAg2HgS2
3.5.5TiemanniteHgSe
3.5.6BalkaniteCu9Ag5HgS8
3.5.7Danielsite(Cu,Ag)14HgS8
3.5.8ColoradoiteHgTe
3.5.9GortdrumiteCu18FeHg6S16
3.5.10Polhemusite(Zn,Hg)S
3.5.11CarliniteTl2S
3.5.12CrookesiteCu7(Tl, Ag)Se4
3.5.13SabatieriteCu6TlSe4
3.5.14PicotpauliteTlFe2S3
3.5.15RaguiniteTlFeS2
3.5.16ThalcusiteTl2Cu3FeS4
3.5.17BukoviteTl2(Cu,Fe)4Se4
3.5.18GalliteCuGaS2
3.5.19RoquesiteCuInS2
3.5.20InditeFeIn2S4

Other Names for Hypercinnabar

Name in Other Languages:

Other Information

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 Hypercinnabar

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

Internet Links for Hypercinnabar

Localities for Hypercinnabar

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.
(TL) indicates type locality for a valid mineral species. (FRL) indicates first recorded locality for everything else. ? indicates mineral may be doubtful at this locality. All other localities listed without reference should be considered as uncertain and unproven until references can be found.
Kyrgyzstan
 
  • Osh Oblast
    • Alai Range (Alay Range)
[Lapis 1993:11 p11-24]
South Africa
 
  • Limpopo Province
    • Murchison Range
      • Gravelotte
        • Monarch Cinnabar mine
Minerals of South Africa
USA (TL)
 
  • California
    • Contra Costa Co.
      • Diablo Range
        • Clayton
          • Mount Diablo State Park
            • Mount Diablo (Mt Diablo)
[Am Min 63 (1978), 1143; 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 District
          • Manhattan
NBMG Spec. Pub. 31 Minerals of Nevada
Mineral and/or Locality  
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