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Schlemaite

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About SchlemaiteHide

Formula:
(Cu,◻)6(Pb,Bi)Se4
Colour:
black
Lustre:
Metallic
Hardness:
3
Specific Gravity:
7.54 (Calculated)
Crystal System:
Monoclinic
Name:
for the type locality, in the Schlema-Hartenstein District (Niederschlema-Alberoda mining area), Erzgebirge, Saxony, Germany.
This page provides mineralogical data about Schlemaite.


Classification of SchlemaiteHide

Approved
Approval Year:
2003
2.BE.25

2 : SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulfantimonites, sulfbismuthites, etc.)
B : Metal Sulfides, M: S > 1: 1 (mainly 2: 1)
E : With Pb (Bi)

Physical Properties of SchlemaiteHide

Metallic
Transparency:
Opaque
Colour:
black
Streak:
black
Hardness:
Hardness:
VHN25=106 kg/mm2 - Vickers
Hardness Data:
Measured
Tenacity:
Brittle
Cleavage:
None Observed
Fracture:
Irregular/Uneven
Density:
7.54 g/cm3 (Calculated)

Chemical Properties of SchlemaiteHide

Formula:
(Cu,◻)6(Pb,Bi)Se4

Crystallography of SchlemaiteHide

Crystal System:
Monoclinic
Class (H-M):
2/m - Prismatic
Space Group:
P21/m
Cell Parameters:
a = 9.5341 Å, b = 4.1004 Å, c = 10.2546 Å
β = 100.066°
Ratio:
a:b:c = 2.325 : 1 : 2.501
Unit Cell V:
394.72 ų
Z:
2

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
3.34(80)
3.17(60)
2.85(80)
2.69(80)
2.17(60)
2.10(70)
2.07(100)
2.04(50)
Comments:
From type description.

Type Occurrence of SchlemaiteHide

General Appearance of Type Material:
anhedral to subhedral grains, up to a few 100 µm in size
Geological Setting of Type Material:
in hydrothermal Se-bearing dolomite-ankerite veins

Synonyms of SchlemaiteHide

Other Language Names for SchlemaiteHide

Simplified Chinese:硒铋铅铜矿
Traditional Chinese:硒鉍鉛銅礦

Common AssociatesHide

Associated Minerals Based on Photo Data:
Berzelianite1 photo of Schlemaite associated with Berzelianite on mindat.org.
Eucairite1 photo of Schlemaite associated with Eucairite on mindat.org.
Clausthalite1 photo of Schlemaite associated with Clausthalite on mindat.org.
Ankerite-Dolomite Series1 photo of Schlemaite associated with Ankerite-Dolomite Series on mindat.org.

Related Minerals - Nickel-Strunz GroupingHide

2.BE.05Betekhtinite(Cu,Fe)21Pb2S15Orth. mmm (2/m 2/m 2/m) : Immm
2.BE.10Furutobeite(Cu,Ag)6PbS4Mon.
2.BE.15RhodplumsiteRh3Pb2S2Trig.
2.BE.15ShanditeNi3Pb2S2Trig.
2.BE.20ParkeriteNi3(Bi,Pb)2S2Mon.
2.BE.30PašavaitePd3Pb2Te2Orth. mmm (2/m 2/m 2/m) : Pmmn

Other InformationHide

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 SchlemaiteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Förster, H.-J.; Cooper,M.A.; Roberts, A.C.; Stanley, C.J.; Criddle, A.J.; Hawthorne, F.C.; Laflamme, J.H.G. & Tischendorf, G. (2003): Schlemaite, (Cu,◻)6(Pb,Bi)Se4, a new mineral species from Niederschlema-Alberoda, Erzgebirge, Germany: Description and crystal structure.- Canadian Mineralogist 41, 1433-1444.

Internet Links for SchlemaiteHide

Localities for SchlemaiteHide

This 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.

Locality ListHide

- This locality has map coordinates listed. - This locality has estimated coordinates. ⓘ - Click for 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 (eg from pseudomorphs.)

All localities listed without proper references should be considered as questionable.
Germany (TL)
 
  • Saxony
    • Erzgebirge
      • Schlema-Hartenstein District
FÖRSTER et al. (2003) Canadian Mineralogist 41, 1433-1444
Mineral and/or Locality  
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