Help mindat.org|Log In|Register|
Home PageMindat NewsThe Mindat ManualHistory of MindatCopyright StatusManagement TeamContact UsAdvertise on Mindat
Donate to MindatSponsor a PageSponsored PagesTop Available PagesMindat AdvertisersAdvertise on MindatThe Mindat Store
Minerals by PropertiesMinerals by ChemistryRandom MineralSearch by minIDLocalities Near MeSearch GlossaryMore Search Options
Search For:
Mineral Name:
Locality Name:
Keyword(s):
 
The Mindat ManualAdd a New PhotoRate PhotosLocality Edit ReportAdd Glossary Item
StatisticsMember ListBooks & MagazinesMineral Shows & EventsThe Mindat DirectoryHow to Link to MindatDevice Settings
Photo SearchPhoto GalleriesNew Photos TodayNew Photos YesterdayMembers' Photo GalleriesPast Photo of the Day Gallery

Radtkeite

This page is currently not sponsored. Click here to sponsor this page.
Formula:
Hg32+S2ICl
System:
Orthorhombic
Colour:
Yellow-orange, darkening ...
Hardness:
2 - 3
Name:
Named in 1991 by John K. McCormack. Frank W. Dickson, and Maureen P. Leshendok in honor of Arthur S. Radtke, geologist of Palo Alto, California, USA in recognition of his long-term research of Carlin-type disseminated gold deposits.
This page provides mineralogical data about Radtkeite.

Classification of Radtkeite

Approved
2.FC.15d

2 : SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulfantimonites, sulfbismuthites, etc.)
F : Sulfides of arsenic, alkalies; sulfides with halide, oxide, hydroxide, H2O
C : With Cl, Br, I (halide-sulfides)
10.3.6.1

10 : OXYHALIDES AND HYDROXYHALIDES
3 : A3(O,OH)2Xq
6.5.5

6 : Sulphosalts - Sulphostannates, Sulphogermanates,Sulpharsenates, Sulphantimonates, Sulphovanadates and Sulphohalides
5 : Sulphohalides
mindat.org URL:
http://www.mindat.org/min-3350.html
Please feel free to link to this page.

First Recorded Occurrence of Radtkeite

Year of Discovery:
1991

Physical Properties of Radtkeite

Sub-Adamantine
Colour:
Yellow-orange, darkening on exposure
Streak:
Yellow-orange
Hardness (Mohs):
2 - 3

Crystallography of Radtkeite

Crystal System:
Orthorhombic
Cell Parameters:
a = 16.92Å, b = 20.25Å, c = 9.11Å
Ratio:
a:b:c = 0.836 : 1 : 0.45
Unit Cell Volume:
V 3,121.36 ų (Calculated from Unit Cell)

Optical Data of Radtkeite

Type:
Biaxial (+)
Dispersion:
relatively weak

Chemical Properties of Radtkeite

Formula:
Hg32+S2ICl
Essential elements:
All elements listed in formula:

Relationship of Radtkeite to other Species

2.FC.05DjerfisheriteK6(Fe,Cu,Ni)25S26Cl
2.FC.05ThalfenisiteTl6(Fe,Ni,Cu)25S26Cl
2.FC.05Owensite(Ba,Pb)6(Cu,Fe,Ni)25S27
2.FC.10BartoniteK6Fe20S26S
2.FC.10ChlorbartoniteK6Fe24S26(Cl,S)
2.FC.15aArzakiteHg32+S2(Br,Cl)2
2.FC.15aCorderoiteHg32+S2Cl2
2.FC.15cGrechishcheviteHg32+S2(Br,Cl,I)2
2.FC.15aLavrentieviteHg32+S2(Cl,Br)2
2.FC.15bKenhsuiteHg32+S2Cl2
2.FC.20aCapgaronniteHgAgS(Cl,Br,I)
2.FC.20cPerrouditeHg5Ag4S5(I,Br)2Cl2
2.FC.20bIltisiteHgAgS(Cl,Br)
2.FC.25Demicheleite-(Br)BiSBr
2.FC.25Demicheleite-(Cl)BiSCl
6.5.1CorderoiteHg32+S2Cl2
6.5.2ArzakiteHg32+S2(Br,Cl)2
6.5.3LavrentieviteHg32+S2(Cl,Br)2
6.5.4GrechishcheviteHg32+S2(Br,Cl,I)2
6.5.6CapgaronniteHgAgS(Cl,Br,I)
6.5.7PerrouditeHg5Ag4S5(I,Br)2Cl2
6.5.8ArdaitePb19Sb13S35Cl7
6.5.9DadsonitePb23Sb25S60Cl
6.5.10RadhakrishnaitePbTe3(Cl,S)2
6.5.11DjerfisheriteK6(Fe,Cu,Ni)25S26Cl
6.5.12ThalfenisiteTl6(Fe,Ni,Cu)25S26Cl

Other Names for Radtkeite

Name in Other Languages:
German:Radtkeit
Spanish:Radtkeita

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 Radtkeite

Reference List:
American Mineralogist: 76: 1715-1721.

Internet Links for Radtkeite

Specimens:
The following Radtkeite specimens are currently listed for sale on minfind.com.

Localities for Radtkeite

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.
(TL) indicates type locality for a valid mineral species. (FRL) indicates first recorded locality for everything else. ? 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.
USA
 
  • Nevada
    • Humboldt Co.
      • Opalite District
AM 76 (1991), 1715; HB3 (1997); NM 90-94 (1997)
Mineral and/or Locality  
Mindat.org is an outreach project of the Hudson Institute of Mineralogy, a 501(c)(3) not-for-profit organization.
Copyright © mindat.org and the Hudson Institute of Mineralogy 1993-2015, except where stated. Mindat.org relies on the contributions of thousands of members and supporters.
Privacy Policy - Terms & Conditions - Contact Us Current server date and time: March 31, 2015 01:27:25 Page generated: March 31, 2015 00:31:17