Scainiite
A valid IMA mineral species
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About Scainiite
Formula:
Pb14Sb30S54O5
Colour:
Black, bluish metallic with dark red tint
Lustre:
Metallic
Specific Gravity:
5.56 (Calculated)
Crystal System:
Monoclinic
Name:
For Dr. Giuseppe Scaini (1906-1988), engineer and skillful investigator of systematic and Italian mineralogy.
This page provides mineralogical data about Scainiite.
Unique Identifiers
Mindat ID:
7016
Long-form identifier:
mindat:1:1:7016:0
GUID
(UUID V4):
(UUID V4):
6c091f5c-3790-4034-a1ce-3655e083bf1b
Classification of Scainiite
Approved
Approval year:
1997
First published:
1999
Type description reference:
2.JB.35b
2 : SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulfantimonites, sulfbismuthites, etc.)
J : Sulfosalts of PbS archetype
B : Galena derivatives, with Pb
2 : SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulfantimonites, sulfbismuthites, etc.)
J : Sulfosalts of PbS archetype
B : Galena derivatives, with Pb
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 |
---|---|---|
Scn | 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 Scainiite
Metallic
Transparency:
Opaque
Colour:
Black, bluish metallic with dark red tint
Hardness:
VHN20=192 kg/mm2 - Vickers
Hardness Data:
Measured
Tenacity:
Brittle
Fracture:
Irregular/Uneven
Density:
5.56 g/cm3 (Calculated)
Optical Data of Scainiite
Anisotropism:
Weak
Bireflectance:
Weak
Reflectivity:
Wavelength | R |
---|---|
400nm | 37.5% |
420nm | 38.0% |
400nm | 37.6% |
440nm | 37.6% |
460nm | 37.6% |
480nm | 37.0% |
500nm | 36.6% |
520nm | 36.2% |
540nm | 35.6% |
560nm | 35.4% |
580nm | 34.7% |
600nm | 34.1% |
620nm | 33.4% |
640nm | 32.8% |
660nm | 32.4% |
680nm | 32.0% |
700nm | 31.1% |
720nm | 30.9% |
740nm | 30.2% |
760nm | 29.8% |
780nm | 29.2% |
800nm | 29.8% |
Graph shows reflectance levels at different wavelengths (in nm). Top of box is 100%. Peak reflectance is 38.0%.
Colour in reflected light:
Black
Internal Reflections:
Rare red internal reflections
Pleochroism:
Not Visible
Chemical Properties of Scainiite
Formula:
Pb14Sb30S54O5
Elements listed:
Crystallography of Scainiite
Crystal System:
Monoclinic
Class (H-M):
2/m - Prismatic
Space Group:
B2/m
Setting:
C2/m
Cell Parameters:
a = 51.996(8) Å, b = 8.148(1) Å, c = 24.311(4) Å
β = 104.09(1)°
β = 104.09(1)°
Ratio:
a:b:c = 6.381 : 1 : 2.984
Unit Cell V:
9991 ų
Z:
4
Crystal Structure
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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) |
---|---|---|---|---|---|---|---|
0006839 | Scainiite | Moelo Y, Meerschaut A, Orlandi P, Palvadeau P (2000) Lead-antimony sulfosalts from Tuscany (Italy): II - Crystal structure of scainiite, Pb14Sb30S54O5, an expanded monoclinic derivative of Ba12Bi24S48 hexagonal sub-type (zinkenite group) European Journal of Mineralogy 12 835-846 | 2000 | Tuscany, Italy | 0 | 293 |
CIF Raw Data - click here to close
X-Ray Powder Diffraction
Powder Diffraction Data:
d-spacing | Intensity |
---|---|
4.039 Å | (13) |
3.773 Å | (11) |
3.706 Å | (4) |
3.622 Å | (11) |
3.472 Å | (100) |
3.441 Å | (18) |
3.041 Å | (35) |
2.956 Å | (54) |
2.827 Å | (20) |
2.706 Å | (8) |
2.628 Å | (8) |
2.441 Å | (5) |
2.356 Å | (5) |
2.296 Å | (7) |
2.228 Å | (22) |
2.100 Å | (2) |
2.052 Å | (46) |
2.006 Å | (8) |
1.973 Å | (8) |
1.947 Å | (129 |
1.898 Å | (9) |
1.867 Å | (6) |
1.827 Å | (4) |
Comments:
d and I observed. Gandolfi camera, diameter 114.6 mm.
Geological Environment
Paragenetic Mode(s):
Paragenetic Mode | Earliest Age (Ga) |
---|---|
High-? alteration and/or metamorphism | |
33 : Minerals deposited by hydrothermal metal-rich fluids (see also [#12]) |
Type Occurrence of Scainiite
General Appearance of Type Material:
Acicular crystals, elongated [010], black in colour with bluish metallic luster. The bluish colour apparently arises from a superficial very low hydrothermal alteration of the crystals. Up to 2 mm long and 0.2 mm thick
Place of Conservation of Type Material:
Museo di Storia Naturale e del Territorio, Pisa University, Italy Catalogue numbers: 15521, 15522, 15523.
Musée de l'Ecole des Mines de Paris, France.
Musée de l'Ecole des Mines de Paris, France.
Geological Setting of Type Material:
Late extensional calcite veins embedded in the dolomitic limestones.
Associated Minerals at Type Locality:
Reference:
Orlandi, P., Moëlo, Y., Meerschaut, A., Palvadeau, P. (1999) Lead-antimony sulfosalts from Tuscany (Italy). I. Scainiite, Pb14Sb30S54O5, the first Pb-Sb oxy-sulfosalt, from Buca della Vena mine. European Journal of Mineralogy: 11: 949-954.
Synonyms of Scainiite
Other Language Names for Scainiite
Common Associates
Associated Minerals Based on Photo Data:
Related Minerals - Strunz-mindat Grouping
2.JB. | Senandorite | AgPbSb3S6 |
2.JB. | Oscarkempffite | Ag10Pb4(Sb17Bi9)S48 |
2.JB. | Chukotkaite | AgPb7Sb5S15 |
2.JB. | Arsenquatrandorite | Ag17.6Pb12.8Sb38.1As11.5S96 |
2.JB. | Clino-oscarkempffite | Ag15Pb6Sb21Bi18S72 |
2.JB. | Andreadiniite | CuHgAg7Pb7Sb24S48 |
2.JB. | Ginelfite | Ag2(Ag0.5Fe)TlPb23.5(Sb,As)33.5S76 |
2.JB. | Lazerckerite | Ag3.75Pb4.50(Sb7.75Bi4)S24 |
2.JB. | Lasmanisite | Ag12Pb13Mn11Sb44S96 |
2.JB. | Montpelvouxite | AgPb16Sb27As18S84 |
2.JB.05 | Diaphorite | Ag3Pb2Sb3S8 |
2.JB.10 | Cosalite | Pb2Bi2S5 |
2.JB.15 | Freieslebenite | AgPbSbS3 |
2.JB.15 | Marrite | AgPbAsS3 |
2.JB.20 | Cannizzarite | Pb48Bi56S132 |
2.JB.20 | Wittite | Pb9Bi12(S,Se)27 |
2.JB.25a | Junoite | Cu2Pb3Bi8(S,Se)16 |
2.JB.25i | Neyite | Ag2Cu6Pb25Bi26S68 |
2.JB.25c | Nordströmite | CuPb3Bi7(Se4S10) |
2.JB.25g | Nuffieldite | Cu1.4Pb2.4Bi2.4Sb0.2S7 |
2.JB.25d | Proudite | CuPb7.5Bi9.33(S,Se)22 |
2.JB.25h | Weibullite | Pb5Bi8Se7S11 |
2.JB.25b | Felbertalite | Cu2Pb6Bi8S19 |
2.JB.25j | Rouxelite | Cu2HgPb23Sb27S65.5 |
2.JB.25f | Ángelaite | Cu2AgPbBiS4 |
2.JB.25i | Cuproneyite | Cu7Pb27Bi25S68 |
2.JB.30a | Geocronite | Pb14Sb6S23 |
2.JB.30a | Jordanite | Pb14As6S23 |
2.JB.30b | Kirkiite | Pb10Bi3As3S19 |
2.JB.30c | Tsugaruite | Pb28As15S50Cl |
2.JB.30a | Marcobaldiite | Pb12(Sb3As2Bi)Σ6S21 |
2.JB.30a | Arsenmarcobaldiite | Pb12(As3.2Sb2.8)Σ6S21 |
2.JB.35c | Pillaite | Pb9Sb10S23ClO0.5 |
2.JB.35a | Zinkenite | Pb9Sb22S42 |
2.JB.35d | Pellouxite | (Cu,Ag)Pb10Sb12S27O(Cl,S)0.6 |
2.JB.35f | Tubulite | Ag2Pb22Sb20S53 |
2.JB.35e | Chovanite | Pb15-2xSb14+2xS36Ox (x ~ 0.2) |
2.JB.40b | Aschamalmite | Pb6-3xBi2+xS9 |
2.JB.40a | Bursaite | Pb5Bi4S11 (?) |
2.JB.40b | Eskimoite | Ag7Pb10Bi15S36 |
2.JB.40a | Fizélyite | Ag5Pb14Sb21S48 |
2.JB.40a | Gustavite | AgPbBi3S6 |
2.JB.40a | Lillianite | Pb3-2xAgxBi2+xS6 |
2.JB.40c | Ourayite | Ag3Pb4Bi5S13 |
2.JB.40a | Ramdohrite | Pb5.9Fe0.1Mn0.1In0.1Cd0.2Ag2.8Sb10.8S24 |
2.JB.40a | Roshchinite | Ag19Pb10Sb51S96 |
2.JB.40d | Schirmerite | PbAgBi3S6 - Pb3Ag1.5Bi3.5S9 |
2.JB.40a | Treasurite | Ag7Pb6Bi15S32 |
2.JB.40a | Uchucchacuaite | AgMnPb3Sb5S12 |
2.JB.40e | Ustarasite | Pb(Bi,Sb)6S10 (?) |
2.JB.40a | Vikingite | Ag5Pb8Bi13S30 |
2.JB.40a | Xilingolite | Pb3Bi2S6 |
2.JB.40b | Heyrovskýite | Pb6Bi2S9 |
2.JB.40 | UM1988-05-S:AgBiCuHgPb | (Hg,Ag,Cu,Pb)5Pb5Bi11S27 |
2.JB.40 | UM1988-06-S:AgBiCuHgPb | (Pb,Hg)12(Cu,Ag)3(Bi,Sb)10(S,Te)27 |
2.JB.40a | Quatrandorite | AgPbSb3S6 |
2.JB.40a | Menchettiite | AgPb2.40Mn1.60Sb3As2S12 |
2.JB.40a | Terrywallaceite | AgPb(Sb,Bi)3S6 |
2.JB.40a | Jasrouxite | Ag16Pb4(Sb24As16)S72 |
2.JB.40a | Staročeskéite | Ag0.70Pb1.60(Bi1.35Sb1.35)Σ2.70S6 |
2.JB.40a | Oyonite | Ag3Mn2Pb4Sb7As4S24 |
2.JB.40a | Holubite | Ag3Pb6(Sb8Bi3)S24 |
2.JB.55 | Gratonite | Pb9As4S15 |
2.JB.60 | Marrucciite | Hg3Pb16Sb18S46 |
2.JB.65 | Vurroite | Pb20Sn2(Bi,As)22S54Cl6 |
2.JB.65 | Tazieffite | Pb20Cd2(As,Bi)22S50Cl10 |
2.JB.70 | Daliranite | PbHgAs2S5 |
Fluorescence of Scainiite
Not fluorescent
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.
Internet Links for Scainiite
mindat.org URL:
https://www.mindat.org/min-7016.html
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References for Scainiite
Reference List:
Localities for Scainiite
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).
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.
All localities listed without proper references should be considered as questionable.
Italy (TL) | |
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Slovakia | |
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Dimitrij vein, Ľudovít adit, Dúbrava Sb deposit, Dúbrava, Liptovský Mikuláš District, Žilina Region, Slovakia