Mindat Logo
Home Page Log In Message Board The Mindat Directory
Register Search Pages Chat Now! (2 online) Mindat Auctions

Freboldite

Big Photo

Temple Mountain, San Rafael District (San Rafael Swell), Emery Co., Utah, USA
© 2007, JGW

Formula:
CoSe
System:HexagonalColour:Copper-red
Hardness:2½ - 3
This page provides mineralogical data about Freboldite.

Classification of Freboldite

IMA status:Valid - first described prior to 1959 (pre-IMA) - "Grandfathered"
Strunz 8th edition ID:2/C.20-40
Nickel-Strunz 10th (pending) edition ID:2.CC.05

2 : SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulfantimonites, sulfbismuthites, etc.)
C : Metal Sulfides, M: S = 1: 1 (and similar)
C : With Ni, Fe, Co, PGE, etc.
Dana 8th edition ID:2.8.11.10

2 : SULFIDES
8 : AmXp, with m:p = 1:1
Hey's CIM Ref.:3.10.4

3 : Sulphides, Selenides, Tellurides, Arsenides and Bismuthides (except the arsenides, antimonides and bismuthides of Cu, Ag and Au, which are included in Section 1)
10 : Sulphides etc. of Co
mindat.org URL:http://www.mindat.org/min-1602.html
Please feel free to link to this page.

Type Occurrence of Freboldite

Type Locality:Trogtal Quarries, Lautenthal, Harz Mts, Lower Saxony, Germany
Year of Discovery:1957

Physical Properties of Freboldite

Lustre:Metallic
Colour:Copper-red
Hardness (Mohs):2½ - 3

Crystallography of Freboldite

Crystal System:Hexagonal
Cell Parameters:a = 3.6Å, c = 5.3Å
Ratio:a:c = 1 : 1.472
Unit Cell Volume:V 59.49 ų (Calculated from Unit Cell)

Chemical Properties of Freboldite

Formula:
CoSe
Essential elements:Co, Se
All elements listed in formula:Co, Se

Relationship of Freboldite to other Species

Related Minerals - Nickel-Strunz Grouping):

- +
2.CC.05Achavalite
FeSe
2.CC.05Breithauptite
NiSb
2.CC.05Kotulskite
Pd(Te,Bi)
 
1-2
2.CC.05Langisite
(Co,Ni)As
2.CC.05Nickeline
NiAs
2.CC.05Sederholmite
NiSe beta-NiSe
2.CC.05Sobolevskite
PdBi
2.CC.05Stumpflite
Pt(Sb,Bi)
2.CC.05Sudburyite
(Pd,Ni)Sb
2.CC.05Jaipurite
CoS
2.CC.05Zlatogorite
NiCuSb
 
2
2.CC.10Pyrrhotite
Fe
 
7
S
 
8
, (-4M), also given as Fe
 
1-x
S (x = 0 - 0.2)
2.CC.10Smythite
(Fe,Ni)
 
9
S
 
11
2.CC.10Troilite
FeS
2.CC.15Cherepanovite
RhAs
2.CC.15Modderite
(Co,Fe)As
2.CC.15Ruthenarsenite
(Ru,Ni)As
2.CC.15Westerveldite
(Fe,Ni,Co)As
2.CC.20Millerite
NiS
2.CC.20Mäkinenite
γ-NiSe
2.CC.20UM1990-38-S:CuFeIrNiPtRh
(Ir,Pt,Ni,Fe)S
2.CC.25Mackinawite
(Fe,Ni)
 
9
S
 
8
2.CC.30Hexatestibiopanickelite
Ni(Te,Sb)
2.CC.30Vavřínite
Ni
 
2
SbTe
 
2
2.CC.35aBraggite
(Pt,Pd,Ni)S
2.CC.35bCooperite
(Pt,Pd,Ni)S
2.CC.35aVysotskite
(Pd,Ni)S
Related Minerals - Hey's Index Grouping:

- +
3.10.1Cobaltpentlandite
(Co,Ni,Fe)
 
9
S
 
8
3.10.2Linnaeite
Co
2+
 
Co
3+
2
S
 
4
3.10.3Cattierite
CoS
 
2
3.10.5Bornhardtite
Co
2+
 
Co
3+
2
Se
 
4
3.10.6Trogtalite
CoSe
 
2
3.10.7Hastite
CoSe
 
2
3.10.8Mattagamite
CoTe
 
2
3.10.9Modderite
(Co,Fe)As
3.10.10Safflorite
(Co,Fe,Ni)As
 
2
3.10.11Clinosafflorite
(Co,Fe,Ni)As
 
2
3.10.12Skutterudite
(Co,Fe,Ni)As
 
2-3
3.10.13Cobaltite
CoAsS
3.10.14Paracostibite
CoSbS
3.10.15Costibite
CoSbS
3.10.16Alloclasite
(Co
 
0.65
Fe
 
0.35
)AsS - CoAsS
3.10.17Glaucodot
(Co
 
0.50
Fe
 
0.50
)AsS
3.10.18Carrollite
Cu(Co,Ni)
 
2
S
 
4

Other Names for Freboldite

Other Languages:
German:Freboldit
Russian:Фребольдит
Spanish:Freboldita

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 Freboldite

Reference List:American Mineralogist: 41: 164.

American Mineralogist: 44: 907.

Internet Links for Freboldite

Search Engines:
  • Look for Freboldite on Google
  • Look for Freboldite images on Google
    • External Links:
  • Look for Freboldite on Webmineral
  • Look for Freboldite on Athena Mineralogy
  • Look for Freboldite on Wikipedia
  • Look for Freboldite on Mineralien Atlas
  • Raman and XRD data at RRUFF project
  • American Mineralogist Crystal Structure Database
  • Search for Freboldite in the Natural History Museum (London) online catalogue
  • Freboldite details from Handbook of Mineralogy (PDF)
    • Mineral Dealers:
  • High-end worldwide specimens & outstanding customer service
  • Buy RARE Minerals from Rocks of Africa
  • DAKOTA MATRIX offers Cabinet and Rare Species from Worldwide Localities.
  • Wilensky Fine Minerals
  • Buy Minerals and Crystals from Crystalarium.com
  • Edwards Minerals - Fine Specimens
  • Search for - Freboldite - on e-Rocks Mineral Sales & Auctions
  • Buy fine minerals and gemstones from Pala International
  • Wendel Minerals - Auktion & Shop
  • Lapis Mineral Magazin
  • Buy minerals from Mineralium.com
  • Buy Fine Minerals from mineralsweb.com
    • Jobs:
  • Mining & Geology Jobs

    • Page Sponsor

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

    Localities for Freboldite

    (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.
    Canada
     
    • Saskatchewan
    		Dana's New Mineralogy
    Germany
     
    • Lower Saxony
      • Harz Mts
        • Lautenthal
    		Am. Mineral. (1956) 41, 164-165; Neues Jahrb. Mineral., Monatsh. (1955) 133–142; Weiss: "Mineralfundstellen, Deutschland West", 1990
    • Saxony-Anhalt
      • Harz Mts
    		Wittern: "Mineralfundorte in Deutschland", 2001
    Mineral and/or Locality
    Google
     
    www.mindat.org Web
    Copyright © Jolyon Ralph and Ida Chau 1993-2009. 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. Current server date and time: 21st Nov 2009 06:21:52