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Galenobismutite

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Formula:
PbBi2S4
System:
Orthorhombic
Colour:
Lead-gray, gray, light ...
Hardness:
2½ - 3½
Name:
Named after its chemical composition.
Related to ángelaite.

Classification of Galenobismutite

Valid - first described prior to 1959 (pre-IMA) - "Grandfathered" 1990
2.JC.25e

2 : SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulfantimonites, sulfbismuthites, etc.)
J : Sulfosalts of PbS archetype
C : Galena derivatives, with Tl
Dana 7th ed.:
3.7.9.1
3.7.9.1

3 : SULFOSALTS
7 : ø = 2
5.6.23

5 : Sulphosalts - Sulpharsenites and Sulphobismuthites (those containing Sn, Ge,or V are in Section 6)
6 : Sulpharsenites etc. of Pb alone
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First Recorded Occurrence of Galenobismutite

Occurrences of Galenobismutite

Geological Setting:
Hydrothermal veins

Physical Properties of Galenobismutite

Metallic
Diaphaneity (Transparency):
Opaque
Colour:
Lead-gray, gray, light gray, tin-white
Comment:
May tarnish yellow or iridescent
Streak:
Gray-black
Hardness (Mohs):
2½ - 3½
Hardness (Vickers):
VHN100=142 - 194 kg/mm2
Tenacity:
Flexible
Cleavage:
Distinct/Good
Good on the {110}
Fracture:
Irregular/Uneven
Density:
6.9 - 7.1 g/cm3 (Measured)    7.195 g/cm3 (Calculated)

Crystallography of Galenobismutite

Crystal System:
Orthorhombic
Class (H-M):
mmm (2/m 2/m 2/m) - Dipyramidal
Cell Parameters:
a = 11.65Å, b = 14.49Å, c = 4.08Å
Ratio:
a:b:c = 0.804 : 1 : 0.282
Unit Cell Volume:
V 688.74 ų
Z:
4
Morphology:
Lathlike, elongated [001] and flattened {100}; needles [001]; striated [001]. Extremely thin plates at times {100}. Crystals frequently bent or twisted. Massive, columnar to fibrous, or compact.
X-Ray Powder Diffraction Data:
d-spacingIntensity
3.65 (3)
3.45 (10)
3.03 (4)
2.76 (3)
2.46 (4)
2.05 (4)
1.961 (5)

Optical Data of Galenobismutite

Type:
Anisotropic
Anisotropism:
Strong
Colour in reflected light:
White

Chemical Properties of Galenobismutite

Formula:
PbBi2S4
Essential elements:
All elements listed in formula:

Relationship of Galenobismutite to other Species

2.JC.05EllisiteTl3AsS3
2.JC.10GillulyiteTl2(As,Sb)8S13
2.JC.40aNakaseiteCuAg3Pb4Sb12S24
5.6.1SartoritePbAs2S4
5.6.2DufrénoysitePb2As2S5
5.6.3LiveingitePb9As13S28
5.6.4BaumhaueritePb12As16S36
5.6.5GratonitePb9As4S15
5.6.6JordanitePb14(As,Sb)6S23
5.6.7FülöppitePb3Sb8S15
5.6.8ZinkenitePb9Sb22S42
5.6.9PlagionitePb5Sb8S17
5.6.10HeteromorphitePb7Sb8S19
5.6.11LaunayiteCuPb10(Sb,As)12S20
5.6.12PlayfairitePb16(Sb,As)19S44Cl
5.6.13SemseyitePb9Sb8S21
5.6.14MadocitePb19(Sb,As)16S43
5.6.15BoulangeritePb5Sb4S11
5.6.17RobinsonitePb4Sb6S13
5.6.18GuettarditePbAsSbS4
5.6.19Twinnite Pb0.8Tl0.1Sb1.3As0.8S4
5.6.20VeenitePb2(Sb,As)2S5
5.6.21SorbyiteCuPb9(Sb,As)11S26
5.6.22GeocronitePb14(Sb,As)6S23
5.6.24CosalitePb2Bi2S5
5.6.25CannizzaritePb4Bi6S13
5.6.26LillianitePb3-2xAgxBi2+xS6
5.6.27GiessenitePb27Cu2(Bi,Sb)19S57
5.6.28Platynite
5.6.29XilingolitePb3Bi2S6
5.6.30WeibullitePb5Bi8Se7S11
5.6.31WittitePb9Bi12(S,Se)27
5.6.32KirkiitePb10Bi3As3S19
5.6.33UstarasitePb(Bi,Sb)6S10 (?)

Other Names for Galenobismutite

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 Galenobismutite

Reference List:
Sjögren (1878), Geol. För. Förh.: 4: 109.

Groth (1882): 25 (as Bleiwismuthglanz)

Shannon (1920), American Journal of Science: 49: 106.

Shannon (1920), U.S. National Museum Proceedings: 58: 589.

Palache, Charles, Harry Berman & Clifford Frondel (1944), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana Yale University 1837-1892, Volume I: Elements, Sulfides, Sulfosalts, Oxides. John Wiley and Sons, Inc., New York. 7th edition, revised and enlarged: 471-473.

Wickman, F.E. (1951) The crystal structure of galenobismutite, PbBi2S4. Arkiv Mineral.: 1(9): 219.

Iitaka, Y. and Nowacki, W. (1962) A redetermination of the crystal structure of galenobismutite, PbBi2S4. Acta Crystallographica: 15: 691-698.

Pinto, D. (2005): Mineralogy, crystal-chemistry and structures of sulfosalts from Vulcano (Aeolian Islands, Italy): Ag-free lillianite, Cl-bearing galenobismutite, kirkiite and the new mineral vurroite. Plinius, 31, 197-202.

Pinto, Daniela, Tonèi Balić-Žunić, Anna Garavelli, Emil Makovicky, Filippo Vurro (2006), Comparative crystal-structure study of Ag-free lillianite and galenobismutite from Vulcano, Aeolian Islands, Italy: Canadian Mineralogist: 44(1): 159-175.

Internet Links for Galenobismutite

Localities for Galenobismutite

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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