Cetineite
A valid IMA mineral species
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About Cetineite
Formula:
(K,Na)6Sb3+12(Sb3+S3)2O18(OH)0.5 · 5,5H2O
Colour:
Orange-red
Lustre:
Resinous
Hardness:
3½
Specific Gravity:
4.21 (Calculated)
Crystal System:
Hexagonal
Name:
Named by C. Sabelli, G. Vezzalini in 1987 after the type locality of Le Cetine di Cotorniano Mine, Italy.
This page provides mineralogical data about Cetineite.
Unique Identifiers
Mindat ID:
943
Long-form identifier:
mindat:1:1:943:2
GUID
(UUID V4):
(UUID V4):
d5890ec3-0fee-409a-9252-7438b85b4897
IMA Classification of Cetineite
Classification of Cetineite
2.MA.05
2 : SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulfantimonites, sulfbismuthites, etc.)
M : Oxysulfosalts
A : Oxysulfosalts of Alkalies and Alkali Earths
2 : SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulfantimonites, sulfbismuthites, etc.)
M : Oxysulfosalts
A : Oxysulfosalts of Alkalies and Alkali Earths
Dana 7th ed.:
2.13.3.1
2.13.3.1
2 : SULFIDES
13 : Oxysulfides
2 : SULFIDES
13 : Oxysulfides
24.1.2
24 : Antimonates and Antimonites
1 : Antimonates and antimonites of Na, Cu or Ag
24 : Antimonates and Antimonites
1 : Antimonates and antimonites of Na, Cu or Ag
Mineral Symbols
As of 2021 there are now IMA–CNMNC approved mineral symbols (abbreviations) for each mineral species, useful for tables and diagrams.
| Symbol | Source | Reference |
|---|---|---|
| Cet | 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 Cetineite
Resinous
Transparency:
Transparent, Translucent
Colour:
Orange-red
Streak:
Orange
Hardness:
3½ on Mohs scale
Hardness:
VHN20=127 - 156 kg/mm2 - Vickers
Tenacity:
Sectile
Cleavage:
Distinct/Good
on {1000}
on {1000}
Density:
4.21 g/cm3 (Calculated)
Optical Data of Cetineite
Type:
Uniaxial (+)
Pleochroism:
Weak
Comments:
From orange to slightly orange-brown.
Chemistry of Cetineite
Mindat Formula:
(K,Na)6Sb3+12(Sb3+S3)2O18(OH)0.5 · 5,5H2O
Common Impurities:
S,Si
Crystallography of Cetineite
Crystal System:
Hexagonal
Class (H-M):
6 - Pyramidal
Space Group:
P63
Cell Parameters:
a = 14.2513(3) Å, c = 5.5900(1) Å
Ratio:
a:c = 1 : 0.392
Unit Cell V:
983.22 ų (Calculated from Unit Cell)
Z:
2
Morphology:
Tufts of acicular crystals.
Crystal Structure
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2x2x2 | 3x3x3 | 4x4x4
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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) |
|---|---|---|---|---|---|---|---|
| 0001144 | Cetineite | Sabelli C, Nakai I, Katsura S (1988) Crystal structures of cetineite and its synthetic Na analogue Na3.6(Sb2O3)3(SbS3)(OH)0.6.2.4(H2O) American Mineralogist 73 398-404 |  | 1988 | 0 | 293 |
CIF Raw Data - click here to close
X-Ray Powder Diffraction
Powder Diffraction Data:
| d-spacing | Intensity |
|---|---|
| 2.916 Å | (100) |
| 12.41 Å | (80) |
| 3.000 Å | (74) |
| 2.690 Å | (61) |
| 4.11 Å | (55) |
| 4.67 Å | (54) |
| 3.581 Å | (44) |
Comments:
Cetine mine, Italy. Data from the type description.
Geological Environment
Paragenetic Mode(s):
| Paragenetic Mode | Earliest Age (Ga) |
|---|---|
| Stage 7: Great Oxidation Event | <2.4 |
| 47a : [Near-surface hydration of prior minerals] | |
| 47b : [Sulfates and sulfites] | |
| 47d : [Arsenates, antimonates, selenates, bismuthinates] | |
| Stage 10b: Anthropogenic minerals | <10 Ka |
| 56 : Slag and smelter minerals (see also #51 and #55) |
Type Occurrence of Cetineite
General Appearance of Type Material:
Tufts of orange-red acicular crystals, elongate [001] and up to 15 mm in length and 15 µm diameter.
Place of Conservation of Type Material:
University of Florence, Florence, Italy, 644/RI.
National Museum of Natural History, Washington, D.C., USA, 164388.
National Museum of Natural History, Washington, D.C., USA, 164388.
Geological Setting of Type Material:
Antimony deposit, on roasted ore that has been weathered.
Synonyms of Cetineite
Other Language Names for Cetineite
Common Associates
Associated Minerals Based on Photo Data:
| 7 photos of Cetineite associated with Mopungite | Na[Sb5+(OH)6] |
| 3 photos of Cetineite associated with Senarmontite | Sb2O3 |
| 3 photos of Cetineite associated with Antimony | Sb |
| 2 photos of Cetineite associated with Valentinite | Sb2O3 |
| 2 photos of Cetineite associated with Stibiconite | Sb3+Sb5+2O6(OH) |
| 2 photos of Cetineite associated with Calcite | CaCO3 |
| 1 photo of Cetineite associated with Marcasite | FeS2 |
| 1 photo of Cetineite associated with Quartz | SiO2 |
| 1 photo of Cetineite associated with Baryte | BaSO4 |
Related Minerals - Strunz-mindat Grouping
| 2.MA.05 | Ottensite | (Na,K)3Sb3+6(Sb3+S3)O9 · 3H2O |
| 2.MA.10 | Sarabauite | CaSb3+10S6O10 |
| 2.MA.15 | Cafeosite | Ca4Fe2+3Fe3+2◻O6S4 |
Fluorescence of Cetineite
Not fluorescent.
Other Information
IR Spectrum:
IR spectrum has absorption bands at 3400 and 1630 cm-1, perhaps due to structural water, and strong bands in the 450-600 cm-1 region due to Sb-O bonds.
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 Cetineite
mindat.org URL:
https://www.mindat.org/min-943.html
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References for Cetineite
Localities for Cetineite
symbol to view information about a locality.
The Locality List
- 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).
All localities listed without proper references should be considered as questionable.
China | |
| Hedegaard (2004) | |
Italy | |
| Conti - Vecchi et al. (1991) |
| Montrasio et al. (1996) |
| Nat. Hist. Mus. Vienna collection |
| AA. VV. | |
| Brizzi G. et al. (1988) +1 other reference |
Luxembourg | |
| Simon Philippo analysis (to be published) |
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Le Cetine di Cotorniano Mine, Chiusdino, Siena Province, Tuscany, Italy