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 ArticlesSearch GlossaryMore Search Options
Search For:
Mineral Name:
Locality Name:
Keyword(s):
 
The Mindat ManualAdd a New PhotoRate PhotosLocality Edit ReportCoordinate Completion ReportAdd Glossary Item
StatisticsThe ElementsMember 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

Altaite

This page is currently not sponsored. Click here to sponsor this page.
Formula:
PbTe
Colour:
Tin-white with a light yellow tint; yellow-brown, blue (tarnished)
Lustre:
Metallic
Hardness:
2 - 3
Specific Gravity:
8.19
Crystal System:
Isometric
Member of:
Name:
After the discovery locality: Zavodinsk, Rudny Altai, Kazakhstan.
Galena Group.

Compare the chemically related 'UM1986-67-Te:Pb' and 'UM1986-68-Te:Pb'.


Classification of Altaite

Approved, 'Grandfathered' (first described prior to 1959)
2.CD.10

2 : SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulfantimonites, sulfbismuthites, etc.)
C : Metal Sulfides, M: S = 1: 1 (and similar)
D : With Sn, Pb, Hg, etc.
2.8.1.3

2 : SULFIDES
8 : AmXp, with m:p = 1:1
3.6.7

3 : Sulphides, Selenides, Tellurides, Arsenides and Bismuthides (except the arsenides, antimonides and bismuthides of Cu, Ag and Au, which are included in Section 1)
6 : Sulphides etc. of Sb and Pb

Physical Properties of Altaite

Metallic
Transparency:
Opaque
Colour:
Tin-white with a light yellow tint; yellow-brown, blue (tarnished)
Comment:
Handbook of Mineralogy: tarnishes bronze; in polished section, white with a delicate greenish hue
Streak:
Black
Hardness:
2 - 3 on Mohs scale
Hardness:
VHN100=47 - 53 - Vickers
Tenacity:
Sectile
Cleavage:
Perfect
on {001}
Fracture:
Sub-Conchoidal
Density:
8.19 g/cm3 (Measured)    8.27 g/cm3 (Calculated)

Optical Data of Altaite

Type:
Isotropic
Reflectivity:
400nmR=59.6%
420nmR=62.6%
440nmR=65.2%
460nmR=67.5%
480nmR=69.3%
500nmR=70.6%
520nmR=71.2%
540nmR=71.1%
560nmR=70.1%
580nmR=68.7%
600nmR=66.8%
620nmR=65.1%
640nmR=63.4%
660nmR=61.9%
680nmR=60.6%
700nmR=59.4%

Reflectance graph
Graph shows reflectance levels at different wavelengths (in nm). Top of box is 100%. Peak reflectance is 71.2%.
Colour in reflected light:
White with greenish hue

Chemical Properties of Altaite

Formula:
PbTe
Common Impurities:
Ag,Au,Cu,Fe,Se,S

Crystallography of Altaite

Crystal System:
Isometric
Class (H-M):
m3m (4/m 3 2/m) - Hexoctahedral
Space Group:
Fm3m
Setting:
Fm3m
Cell Parameters:
a = 6.439 Å
Unit Cell V:
266.97 ų (Calculated from Unit Cell)
Z:
4
Morphology:
Rarely in very small cubes and octahedra; massive, as cleavages, to 1 cm; granular, myrmekitic in other sulfides.

Crystallographic forms of Altaite

Crystal Atlas:
Image Loading
Click on an icon to view
Altaite no.1 - Goldschmidt (1913-1926)
Altaite no.2 - Goldschmidt (1913-1926)
3d models and HTML5 code kindly provided by www.smorf.nl.

Toggle
Edge Lines | Miller Indicies | Axes

Transparency
Opaque | Translucent | Transparent

View
Along a-axis | Along b-axis | Along c-axis | Start rotation | Stop rotation

X-Ray Powder Diffraction

Powder Diffraction Data:
d-spacingIntensity
3.23 (100)
2.29 (80)
1.859 (30)
1.610 (20)
1.443 (50)
1.314 (40)
1.074 (20)

Type Occurrence of Altaite

Synonyms of Altaite

Other Language Names for Altaite

Russian:Алтаит
Simplified Chinese:碲铅矿
Spanish:Altaita

Relationship of Altaite to other Species

Member of:
Other Members of this group:
AlabanditeMnS
ClausthalitePbSe
GalenaPbS
Niningerite(Mg,Fe2+,Mn2+)S
Oldhamite(Ca,Mg)S

Common Associates

AguilariteAg4SeS
AntimonySb
ArsenopyriteFeAsS
BoulangeritePb5Sb4S11
BournonitePbCuSbS3
CalaveriteAuTe2
CerussitePbCO3
ChalcopyriteCuFeS2
GalenaPbS
GoldAu
HessiteAg2Te
HessiteAg2Te
JamesonitePb4FeSb6S14
Nagyágite[Pb3(Pb,Sb)3S6](Au,Te)3
PetziteAg3AuTe2
PyriteFeS2
PyrrhotiteFe7S8
QuartzSiO2
SideriteFeCO3
SilverAg
SphaleriteZnS
Sylvanite(Au,Ag)2Te4
TellurantimonySb2Te3
TelluriumTe
TetrahedriteCu6[Cu4(Fe,Zn)2]Sb4S13
Associated Minerals Based on Photo Data:
Coloradoite15 photos of Altaite associated with Coloradoite on mindat.org.
Pyrite12 photos of Altaite associated with Pyrite on mindat.org.
Gold12 photos of Altaite associated with Gold on mindat.org.
Chalcopyrite8 photos of Altaite associated with Chalcopyrite on mindat.org.
Cubanite7 photos of Altaite associated with Cubanite on mindat.org.
Tellurantimony7 photos of Altaite associated with Tellurantimony on mindat.org.
Mooihoekite7 photos of Altaite associated with Mooihoekite on mindat.org.
Sobolevskite6 photos of Altaite associated with Sobolevskite on mindat.org.
Petzite6 photos of Altaite associated with Petzite on mindat.org.
Mattagamite5 photos of Altaite associated with Mattagamite on mindat.org.

Related Minerals - Nickel-Strunz Grouping

2.CD.05Herzenbergite(Sn,Pb)SnS2
2.CD.05Teallite(Pb,Sn)SnS2
2.CD.10AlabanditeMnS
2.CD.10ClausthalitePbSe
2.CD.10GalenaPbS
2.CD.10Niningerite(Mg,Fe2+,Mn2+)S
2.CD.10Oldhamite(Ca,Mg)S
2.CD.10Keilite(Fe2+,Mg)S
2.CD.15aCinnabarHgS
2.CD.15bHypercinnabarHgS

Related Minerals - Hey's Chemical Index of Minerals Grouping

3.6.1Herzenbergite(Sn,Pb)SnS2
3.6.2Ottemannitebeta Sn2S3
3.6.3BerndtiteSnS2
3.6.4StistaiteSnSb
3.6.5GalenaPbS
3.6.6ClausthalitePbSe
3.6.8Furutobeite(Cu,Ag)6PbS4
3.6.9AschamalmitePb6Bi2S9
3.6.10Betekhtinite(Cu,Fe)21Pb2S15
3.6.11Shadlunite(Pb,Cd)(Fe,Cu)8S8

Related Minerals - Dana Grouping (8th Ed.)

2.8.1.1GalenaPbS
2.8.1.2ClausthalitePbSe
2.8.1.4AlabanditeMnS
2.8.1.7BorovskitePd3SbTe4
2.8.1.8CreraritePt2-x(Bi,Pb)11(S,Se)11

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 Altaite

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Haidinger, W. (1845) Zweite Klasse: Geogenide. XII. Ordung. Metalle. II. Tellur. Altait. in Handbuch der bestimmenden Mineralogie, bei Braumüller und Seidel (Wien): 556-559.
Genth, F.A. (1868) Contributions to mineralogy - No. VII. American Journal of Science and Arts: 95: 305-321.
Palache, C., Berman, H., Frondel, C. (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, 834pp.: 205-206.
Thompson, R.M. (1949) The telluride minerals and their occurrence in Canada. American Mineralogist: 34: 341-382.
Noda, Y., Masumoto, K., Ohba, S., Saito, Y., Toriumi, K., Iwata, Y., Shibuya, I. (1987) Temperature dependence of atomic thermal parameters of lead chalcogenides, PbS, PbSe and PbTe. Acta Crystallographica C43: 1443-1445.

Internet Links for Altaite

mindat.org URL:
https://www.mindat.org/min-147.html
Please feel free to link to this page.
Specimens:
The following Altaite specimens are currently listed for sale on minfind.com.

Localities for Altaite

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 1993-2017, 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: July 29, 2017 12:53:46 Page generated: July 25, 2017 10:05:41
Go to top of page