metacinnabar
Sign in to saveMetacinnabar is the cubic form of mercury sulfide (HgS). It is the high temperature form and trimorphous with cinnabar (trigonal structure) and the higher temperature hypercinnabar (hexagonal structure). It occurs with cinnabar in mercury deposits and is associated with native mercury, wurtzite, stibnite, marcasite, realgar, calcite, barite, chalcedony and hydrocarbons.
Key facts
- Mineral.symmetry
- F3m
- Mineral.boxbgcolor
- 9c9471
- Mineral.name
- Metacinnabar
- Mineral.boxtextcolor
- fff
- Mineral.image
- Metacinnabar-233443.jpg
- Mineral.imagesize
- 260px
- Mineral.category
- Sulfide mineral
- Mineral.formula
- HgS
- Mineral.IMAsymbol
- Mcin
- Mineral.strunz
- 2.CB.05a
- Mineral.system
- Cubic
- Mineral.class
- Hextetrahedral (3m) H-M symbol: ( 3m)
- Mineral.unit cell
- a = 5.8717(5) Å; Z = 4
- Mineral.color
- Grayish black
- Mineral.habit
- Massive, rarely as tetrahedral crystals, as incrustations
- Mineral.twinning
- Common as lamellae on {111}
- Mineral.cleavage
- None
- Mineral.fracture
- Subconchoidal
via Wikipedia infobox
Wikidata facts
- Has part
- mercury(II) sulfide
- Named after
- meta-
- Image
- Metacinnabar-146931.jpg
Show 8 more facts
- Strunz 8th edition (series ID, updated)
- II/B.01
- IMA Mineral Symbol
- Mcin
- Commons category
- Metacinnabar
- chemical formula
- HgS
- Nickel-Strunz 9th edition (updated 2009)
- 2.CB.05a
- Nickel-Strunz '10th ed', review of (9th ed/ 2009 update)
- 2.CB.05a
- streak color
- black
- crystal system
- cubic crystal system
via Wikidata · CC0
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Encyclopedic overview
1 sectionsContents
- References
{{Infobox mineral |boxbgcolor=#9c9471| name = Metacinnabar | boxtextcolor = #fff | image = Metacinnabar-233443.jpg | imagesize = 260px | alt = | caption = | category = Sulfide mineral | formula = HgS | IMAsymbol = Mcin | strunz = 2.CB.05a | dana = | system = Cubic | class = Hextetrahedral (3m) H-M symbol: ( 3m) | symmetry = F3m | unit cell = a = 5.8717(5) Å; Z = 4 | color = Grayish black | habit = Massive, rarely as tetrahedral crystals, as incrustations | twinning = Common as lamellae on {111} | cleavage = None | fracture = Subconchoidal | tenacity = Brittle | mohs = 3 | luster = Metallic | streak = Black | diaphaneity = Opaque | gravity = 7.7–7.8 | density = | polish = | opticalprop = | refractive = | birefringence = | pleochroism = | 2V = | dispersion = | extinction = | length fast/slow = | fluorescence = | absorption = | melt = | fusibility = | diagnostic = | solubility = | impurities = | alteration = | other = | references = | SMILES = [SH+2]12[HgH2-2][SH+2]3[HgH2-2][SH+2]([HgH-2]14)[HgH-2]1[S+2]5([HgH-2]38)[Hg-2]26[SH+2]2[HgH-2]([S+2]4)[SH+2]1[HgH2-2][SH+2]3[HgH-2]2[S+2][HgH-2]([SH+2]6[HgH-2]([SH+2])[SH+2]68)[SH+2]([HgH2-2]6)[HgH-2]35 | Jmol = [SH+2]12[HgH2-2][SH+2]3[HgH2-2][SH+2]([HgH-2]14)[HgH-2]1[S+2]5([HgH-2]38)[Hg-2]26[SH+2]2[HgH-2]([S+2]4)[SH+2]1[HgH2-2][SH+2]3[HgH-2]2[S+2][HgH-2]([SH+2]6[HgH-2]([SH+2])[SH+2]68)[SH+2]([HgH2-2]6)[HgH-2]35
}}
Excerpted from Wikipedia’s “metacinnabar” article, available under the CC BY-SA 4.0 licence.