Mindat Logo
Home Page Log In Message Board The Mindat Directory
Register Search Pages Chat Now! (3 online) Mindat Auctions

Brodtkorbite

Formula:
Cu
 
2
HgSe
 
2
System:MonoclinicColour:Dark grey
Lustre:MetallicHardness:2½ - 3
Name:For Dr. Milka Kronegold de Brodtkorb
This page provides mineralogical data about Brodtkorbite.

Classification of Brodtkorbite

IMA status:Approved 1999
Nickel-Strunz 10th (pending) edition ID:2.BD.55

2 : SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulfantimonites, sulfbismuthites, etc.)
B : Metal Sulfides, M: S > 1: 1 (mainly 2: 1)
D : With Hg, Tl
mindat.org URL:http://www.mindat.org/min-7090.html
Please feel free to link to this page.

Type Occurrence of Brodtkorbite

Type Locality:Tumiñico Mine, Sierra de Cacho, Sierra de Umango, La Rioja, Argentina
General Appearance of Type Material:Anhedral grains from 10x20 µm to 50 x 100 µm and aggregates reaching 150 x 250 µm
Year of Discovery:1999
Geological Setting of type material:In a telethermal selenide vein-type assemblage
Associated Minerals at type locality:
UraniniteUmangiteTrogtalite-Krutaite SeriesTiemanniteTiemannite
Mercurian CadmoseliteKlockmanniteHakiteFerroseliteEucairite
EskeborniteCuprian CadmoseliteChaméaniteBellidoite

Physical Properties of Brodtkorbite

Lustre:Metallic
Diaphaneity (Transparency):Opaque
Colour:Dark grey
Streak:Dark grey
Hardness (Mohs):2½ - 3
Hardness (Vickers):VHN10=118 kg/mm2
Tenacity:Brittle
Cleavage:None Observed
Fracture:Irregular/Uneven
Density (calculated):7.77 g/cm3

Crystallography of Brodtkorbite

Crystal System:Monoclinic
Class (H-M):2/m - Prismatic
Space Group:P21/m (P1 1 21/m) [P21/m] {P1 21/m 1}
Cell Parameters:a = 7.492Å, b = 4.177Å, c = 7.239Å
β = 114.2°
Ratio:a:b:c = 1.794 : 1 : 1.733
Unit Cell Volume:V 206.6 ų
Z:2
X-Ray Powder Diffraction:
d-spacingIntensity
3.991 (70)
3.576 (50)
3.534 (50)
3.414 (50)
2.730 (100)
2.223 (70)
2.072 (50)

Optical Data of Brodtkorbite

Type:Anisotropic
Anisotropism:Weak to strong
Bireflectance:Strong
Reflectivity:
470nmR1=29.60%R2= 37.10%imR1= 15.15%imR2= 22.00%
546nmR1=27.40%R2= 35.10%imR1= 13.30%imR2= 20.15%
589nmR1=26.60%R2= 34.60%imR1= 12.70%imR2= 19%
650nmR1=26.10%R2= 34.10%imR1= 12.30%imR2= 19.25%


Graph shows reflectance levels at different wavelengths (in nm). Peak reflectance is 37.10%.
R1 shown in black, R2 shown in red, imR1 shown in green, imR2 shown in blue
Colour in reflected light:White
Pleochroism:Visible
Comments:Weak to Moderate

Chemical Properties of Brodtkorbite

Formula:
Cu
 
2
HgSe
 
2
Essential elements:Cu, Hg, Se
All elements listed in formula:Cu, Hg, Se

Relationship of Brodtkorbite to other Species

Related Minerals - Nickel-Strunz Grouping):

- +
2.BD.05Imiterite
Ag
 
2
HgS
 
2
2.BD.10Gortdrumite
(Cu,Fe)
 
6
Hg
 
2
S
 
5
2.BD.15Balkanite
Cu
 
9
Ag
 
5
HgS
 
8
2.BD.15Danielsite
(Cu,Ag)
 
14
HgS
 
8
2.BD.20Donharrisite
Ni
 
8
Hg
 
3
S
 
9
2.BD.25Carlinite
Tl
 
2
S
2.BD.30Bukovite
Tl
 
2
(Cu,Fe)
 
4
Se
 
4
2.BD.30Murunskite
K
 
2
Cu
 
3
FeS
 
4
2.BD.30Thalcusite
Tl
 
2
Cu
 
3
FeS
 
4
2.BD.35Rohaite
Cu
 
5
TlSbS
 
2
2.BD.40Chalcothallite
Tl
 
2
(Cu,Fe)
 
6
SbS
 
4
2.BD.45Sabatierite
Cu
 
6
TlSe
 
4
2.BD.50Crookesite
(Cu,Tl,Ag)
 
2
Se

Other Names for Brodtkorbite

Synonyms:
IMA1999-023
Other Languages:
German:Brodtkorbit
Spanish:Brodtkorbita

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 Brodtkorbite

Reference List:Canadian Mineralogist: 40: 225-237.

Articles/Blogs about Brodtkorbite

Internet Links for Brodtkorbite

Search Engines:
  • Look for Brodtkorbite on Google
  • Look for Brodtkorbite images on Google
    • External Links:
  • Look for Brodtkorbite on Webmineral
  • Look for Brodtkorbite on Athena Mineralogy
  • Look for Brodtkorbite on Wikipedia
  • Look for Brodtkorbite on Mineralien Atlas
  • Raman and XRD data at RRUFF project
  • American Mineralogist Crystal Structure Database
  • Search for Brodtkorbite in the Natural History Museum (London) online catalogue
  • Brodtkorbite details from Handbook of Mineralogy (PDF)
    • Mineral Dealers:
  • High-end worldwide specimens & outstanding customer service
  • Buy minerals from Mineralium.com
  • Mineral Classics - Worldwide Collector Quality Minerals and Gems
  • Top quality minerals from Kristalle of California
  • Wright's Rock Shop - excellent mineral specimens since 1970
  • Fabre Minerals - search for Brodtkorbite specimens
  • Search for - Brodtkorbite - on e-Rocks Mineral Sales & Auctions
  • Search for Brodtkorbite on minvision.com
  • Rare and Unusual minerals at Mineralogical Research Company
  • rare and unusual minerals mainly crystallized
  • Buy Minerals and Crystals from Crystalarium.com
  • Fine Minerals from Dan Weinrich Minerals
    • Jobs:
  • Mining & Geology Jobs

    • Page Sponsor

    Sponsorship:This page is currently not sponsored. Click here to sponsor this page.

    Localities for Brodtkorbite

    Hide Locality List
    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.
    These maps work faster with Firefox!
    (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.
    Argentina
     
    • La Rioja
      • Sierra de Umango
        • Sierra de Cacho
    		Can.Min.(2002) 40, 225-237
    Mineral and/or Locality
    Google
     
    www.mindat.org Web
    Copyright © Jolyon & Ida Ralph 1993-2008. Site Map. Locality, mineral & photograph data are the copyright of the individuals who submitted them.Further information contact the Site hosted & developed by Jolyon Ralph. Mindat.org is an online information resource dedicated to providing free mineralogical information to all. Mindat relies on the contributions of hundreds of members and supporters. If you would like to add information to improve the quality of our database, then click here to register.