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Scainiite

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Buca della Vena Mine, Ponte Stazzemese, Stazzema, Apuan Alps, Lucca Province, Tuscany, Italy
© Cristian B.

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Formula:
Pb
 
14
Sb
 
30
S
 
54
O
 
5
System:MonoclinicColour:Black, bluish metallic ...
Lustre:Metallic
Name:For Dr. Giuseppe Scaini (1906-1988), engineer and skillful investigator of systematic and Italian mineralogy.
This page provides mineralogical data about Scainiite.

Classification of Scainiite

IMA status:Approved 1997
Strunz 8th edition ID:2/E.26-
Nickel-Strunz 10th (pending) edition ID: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
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Type Occurrence of Scainiite

Type Locality:Buca della Vena Mine, Ponte Stazzemese, Stazzema, Apuan Alps, Lucca Province, Tuscany, Italy
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.
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.
Geological Setting of type material:Late extensional calcite veins embedded in the dolomitic limestones.

Physical Properties of Scainiite

Lustre:Metallic
Diaphaneity (Transparency):Opaque
Colour:Black, bluish metallic with dark red tint
Hardness (Vickers):VHN100=192
Hardness Data:Measured
Tenacity:Brittle
Fracture:Irregular/Uneven
Density (calculated):5.56 g/cm3

Crystallography of Scainiite

Crystal System:Monoclinic
Class (H-M):2/m - Prismatic
Space Group:B2/m {B1 1 2/m} {C2/m} {C1 2/m 1}
Cell Parameters:a = 52Å, b = 8.148Å, c = 24.31Å
β = 104.09°
Ratio:a:b:c = 6.382 : 1 : 2.984
Unit Cell Volume:V 9991 ų
Z:4
X-Ray Powder Diffraction:
d-spacingIntensity
4.039 (13)
3.773 (11)
3.706 (4)
3.622 (11)
3.472 (100)
3.441 (18)
3.041 (35)
2.956 (54)
2.827 (20)
2.706 (8)
2.628 (8)
2.441 (5)
2.356 (5)
2.296 (7)
2.228 (22)
2.100 (2)
2.052 (46)
2.006 (8)
1.973 (8)
1.947 (129
1.898 (9)
1.867 (6)
1.827 (4)
Comments:d and I observed. Gandolfi camera, diameter 114.6 mm.

Optical Data of Scainiite

Type:Anisotropic
Anisotropism:weak
Bireflectance:weak
Internal Reflections:rare red internal reflections

Chemical Properties of Scainiite

Formula:
Pb
 
14
Sb
 
30
S
 
54
O
 
5
Essential elements:O, Pb, S, Sb
All elements listed in formula:O, Pb, S, Sb

Relationship of Scainiite to other Species

Related Minerals - Nickel-Strunz Grouping):

- +
2.JB.05Diaphorite
Ag
 
3
Pb
 
2
Sb
 
3
S
 
8
2.JB.10Cosalite
Pb
 
2
Bi
 
2
S
 
5
2.JB.15Freieslebenite
AgPbSbS
 
3
2.JB.15Marrite
AgPbAsS
 
3
2.JB.20Cannizzarite
Pb
 
4
Bi
 
6
S
 
13
2.JB.20Wittite
Pb
 
9
Bi
 
12
(S,Se)
 
27
2.JB.25aJunoite
Cu
 
2
Pb
 
3
Bi
 
8
(S,Se)
 
16
2.JB.25iNeyite
Ag
 
2
Cu
 
6
Pb
 
25
Bi
 
26
S
 
68
2.JB.25cNordströmite
CuPb
 
3
Bi
 
7
(Se
 
4
S
 
10
)
2.JB.25gNuffieldite
Pb
 
2
Cu(Pb,Bi)Bi
 
2
S
 
7
2.JB.25dProudite
CuPb
 
7.5
Bi
 
9.33
(S,Se)
 
22
2.JB.25hWeibullite
Pb
 
5
Bi
 
8
Se
 
7
S
 
11
2.JB.25bFelbertalite
Cu
 
2
Pb
 
6
Bi
 
8
S
 
19
2.JB.25jRouxelite
Cu
 
2
HgPb
 
23
Sb
 
27
S
 
65.5
2.JB.25fÁngelaite
Cu
 
2
AgPbBiS
 
4
2.JB.25iCuproneyite
Cu
 
7
Pb
 
27
Bi
 
25
S
 
68
2.JB.30aGeocronite
Pb
 
14
(Sb,As)
 
6
S
 
23
2.JB.30aJordanite
Pb
 
14
(As,Sb)
 
6
S
 
23
2.JB.30bKirkiite
Pb
 
10
Bi
 
3
As
 
3
S
 
19
2.JB.30cTsugaruite
Pb
 
4
As
 
2
S
 
7
2.JB.35cPillaite
Pb
 
9
Sb
 
10
S
 
23
ClO
 
0.5
2.JB.35aZinkenite
Pb
 
9
Sb
 
22
S
 
42
2.JB.35dPellouxite
(Cu,Ag)Pb
 
10
Sb
 
12
S
 
27
O(Cl,S)
 
0.6
2.JB.40bAschamalmite
Pb
 
6
Bi
 
2
S
 
9
2.JB.40aBursaite
Pb
 
5
Bi
 
4
S
 
11
2.JB.40bEskimoite
Ag
 
7
Pb
 
10
Bi
 
15
S
 
36
2.JB.40aFizélyite
Ag
 
5
Pb
 
14
Sb
 
21
S
 
48
2.JB.40aGustavite
Ag
 
3
Pb
 
5
Bi
 
11
S
 
24
2.JB.40aLillianite
Pb
 
3
Bi
 
2
S
 
6
2.JB.40cOurayite
Ag
 
3
Pb
 
4
Bi
 
5
S
 
13
2.JB.40aRamdohrite
(Cd,Mn,Fe)Ag
 
5.5
Pb
 
12
Sb
 
21.5
S
 
48
2.JB.40aRoshchinite
Ag
 
19
Pb
 
10
Sb
 
51
S
 
96
2.JB.40dSchirmerite
AgPb
 
2
Bi
 
3
S
 
7
2.JB.40aTreasurite
Ag
 
7
Pb
 
6
Bi
 
15
S
 
32
2.JB.40aUchucchacuaite
AgMnPb
 
3
Sb
 
5
S
 
12
2.JB.40eUstarasite
Pb(Bi,Sb)
 
6
S
 
10
 (?)
2.JB.40aVikingite
Ag
 
5
Pb
 
8
Bi
 
13
S
 
30
2.JB.40aXilingolite
Pb
 
3
Bi
 
2
S
 
6
2.JB.40bHeyrovskýite
Pb
 
10
AgBi
 
5
S
 
18
2.JB.40UM1988-05-S:AgBiCuHgPb
(Hg,Ag,Cu,Pb)
 
5
Pb
 
5
Bi
 
11
S
 
27
2.JB.40UM1988-06-S:AgBiCuHgPb
(Pb,Hg)
 
12
(Cu,Ag)
 
3
(Bi,Sb)
 
10
(S,Te)
 
27
2.JB.40aAndorite IV
Pb
 
18
Ag
 
15
Sb
 
47
S
 
96
2.JB.55Gratonite
Pb
 
9
As
 
4
S
 
15
2.JB.60Marrucciite
Hg
 
3
Pb
 
16
Sb
 
18
S
 
46
2.JB.65Vurroite
Pb
 
20
Sn
 
2
(Bi,As)
 
22
S
 
54
Cl
 
6

Other Names for Scainiite

Synonyms:
IMA1996-014Scainite
Other Languages:
German:Scainit
Russian:Скайнит
Spanish:Scainita

Other Information

Health Warning:No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.

References for Scainiite

Reference List:

- +
-Orlandi P., Moëlo Y., Meerschaut A., Palvadeau P. (1999). Lead-antimony sulfosalts from Tuscany (Italy). I. Scainiite, Pb^14Sb^30S^54O^5, the first Pb-Sb oxy-sulfosalt, from Buca della Vena mine, European Journal of Mineralogy: 11: 949-954.

European Journal of Mineralogy: 12: 835-846.

Zeitschrift für Kristallographie: 173: 1-23.

Internet Links for Scainiite

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  • Raman and XRD data at RRUFF project
  • American Mineralogist Crystal Structure Database
  • Scainiite details from Handbook of Mineralogy (PDF) [Link dead]
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    • Localities for Scainiite

    The 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.
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    (TL) indicates type locality. ? 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.
    Italy
     
    • Tuscany
      • Lucca Province
        • Apuan Alps
          • Stazzema
            • Ponte Stazzemese
    		Orlandi P., Moëlo Y., Meerschaut A., Palvadeau P. (1999): Lead-antimony sulfosalts from Tuscany (Italy): I. Scainiite, Pb14Sb30S54O5, the first Pb-Sboxy-sulfosalt, from Buca della Vena mine., European Journal of Mineralogy 11, 949-954
    Slovakia
     
    • Žilina Region
      • Liptovský Mikuláš Co.
    		Chovan, M., Majzlan, J., Ragan, M., Siman, P., Krištín, J. (1998): Pb-Sb and Pb-Sb-Bi sulfosalts and associated sulphides from Dúbrava antimony deposit, Nízké Tatry Mts. Acta Geologica Universitatis Comenianae, 53, 37-49. Sejkora, J. & Kouřimský, J. (2005): Atlas minerálů České a Slovenské republiky. Academia, Praha, 375 p. (in Czech)
          • Ludovít Mine
    		Rob Lavinsky
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