IMPORTANT MESSAGE. We need your support now to keep mindat.org running. Click here to find out why.
Log InRegister
Home PageAbout MindatThe Mindat ManualHistory of MindatCopyright StatusWho We AreContact UsAdvertise on Mindat
Donate to MindatCorporate SponsorshipSponsor a PageSponsored PagesMindat AdvertisersAdvertise on Mindat
Learning CenterWhat is a mineral?The most common minerals on earthInformation for Educators
Minerals by PropertiesMinerals by ChemistryAdvanced Locality SearchRandom MineralRandom LocalitySearch 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 ElementsUsersBooks & MagazinesMineral MuseumsMineral Shows & EventsThe Mindat DirectoryDevice Settings
Photo SearchPhoto GalleriesNew Photos TodayNew Photos YesterdayMembers' Photo GalleriesPast Photo of the Day Gallery

Olsacherite

This page is currently not sponsored. Click here to sponsor this page.
Hide all sections | Show all sections

About OlsacheriteHide

Formula:
Pb2(Se6+O4)(SO4)
Colour:
Colorless
Lustre:
Vitreous
Hardness:
3 - 3½
Specific Gravity:
6.55 (Calculated)
Crystal System:
Orthorhombic
Name:
Named in honor of Juan Augusto Olsacher (1903 - 1964), Argentine mineralogist, professor and chair of mineralogy at the University of Córdoba. An expert on selenium minerals in Argentina, he discovered and described achavalite and schmiederite.
An alteration product of penroseite.
Closely related to molybdomenite.


Classification of OlsacheriteHide

Approved
Approval Year:
1969
First Published:
1969
7.AD.35

7 : SULFATES (selenates, tellurates, chromates, molybdates, wolframates)
A : Sulfates (selenates, etc.) without additional anions, without H2O
D : With only large cations
32.1.3.1

32 : COMPOUND SULFATES
1 : Anhydrous Compound Sulfates
28.2.1

28 : Selenites, Selenates, Tellurites, and Tellurates
2 : Selenates

Physical Properties of OlsacheriteHide

Vitreous
Transparency:
Transparent, Translucent
Colour:
Colorless
Streak:
Colorless
Hardness:
3 - 3½ on Mohs scale
Tenacity:
Brittle
Cleavage:
Distinct/Good
{101} good, {010} fair
Density:
6.55 g/cm3 (Calculated)

Optical Data of OlsacheriteHide

Type:
Biaxial (-)
RI values:
nα = 1.945 nβ = 1.966 nγ = 1.983
2V:
Measured: 80° , Calculated: 82°
Max Birefringence:
δ = 0.038
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Surface Relief:
Very High
Dispersion:
relatively weak

Chemical Properties of OlsacheriteHide

Formula:
Pb2(Se6+O4)(SO4)

Crystallography of OlsacheriteHide

Crystal System:
Orthorhombic
Cell Parameters:
a = 8.42 Å, b = 10.96 Å, c = 7 Å
Ratio:
a:b:c = 0.768 : 1 : 0.639
Unit Cell V:
645.98 ų (Calculated from Unit Cell)
Morphology:
Elongated on [010]

Type Occurrence of OlsacheriteHide

General Appearance of Type Material:
Occurs sparingly in well formed crystals coating the walls of small cracks or cavities.
Geological Setting of Type Material:
Selenium deposit
Reference:
Hurlbut, C.S., Aristarain, L.F. (1969) Olsacherite, Pb2(SO4)(SeO4), a new mineral from Bolivia. American Mineralogist: 54: 1519-1527.

Synonyms of OlsacheriteHide

Other Language Names for OlsacheriteHide

Simplified Chinese:硒铅矾
氧硒矿
Traditional Chinese:硒鉛礬

Common AssociatesHide

Associated Minerals Based on Photo Data:
Chalcomenite5 photos of Olsacherite associated with Chalcomenite on mindat.org.

Related Minerals - Nickel-Strunz GroupingHide

7.AD.CalciolangbeiniteK2Ca2(SO4)3 Iso. 2 3 : P21 3
7.AD.BubnovaiteK2Na8Ca(SO4)6Trig. 3m : P3 1c
7.AD.05ArcaniteK2SO4Orth. mmm (2/m 2/m 2/m)
7.AD.05Mascagnite(NH4)2SO4Orth. mmm (2/m 2/m 2/m) : Pnma
7.AD.10MercalliteKHSO4Orth. mmm (2/m 2/m 2/m)
7.AD.15MiseniteK8H6(SO4)7Mon.
7.AD.20Letovicite(NH4)3H(SO4)2Tric.
7.AD.25GlauberiteNa2Ca(SO4)2Mon. 2/m : B2/b
7.AD.30AnhydriteCaSO4Orth. mmm (2/m 2/m 2/m)
7.AD.35AnglesitePbSO4Orth. mmm (2/m 2/m 2/m) : Pnma
7.AD.35BaryteBaSO4Orth. mmm (2/m 2/m 2/m) : Pnma
7.AD.35CelestineSrSO4Orth. mmm (2/m 2/m 2/m) : Pnma
7.AD.40KalistrontiteK2Sr(SO4)2Trig.
7.AD.40Palmierite(K,Na)2Pb(SO4)2Trig. 3m (3 2/m) : R3m

Related Minerals - Hey's Chemical Index of Minerals GroupingHide

28.2.2SchmiederitePb2Cu2(Se6+O4)(Se4+O3)(OH)4Mon.

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 OlsacheriteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Bertrand (1882), Bull. soc. min.: 5: 92.
Dana (1892): 201.
Palache, Charles, Harry Berman & Clifford Frondel (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: 595.
Hurlbut, C.S., Aristarain, L.F. (1969) Olsacherite, Pb2(SO4)(SeO4), a new mineral from Bolivia. American Mineralogist: 54: 1519-1527.

Internet Links for OlsacheriteHide

Localities for OlsacheriteHide

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.
Argentina
 
  • La Rioja
    • General Lamadrid department
      • Los Llantenes district
Paar W H, Topa D, Makovicky E, Sureda R J, de Brodtkorb M K, Nickel E H, Putz H (2004) Jaguéite, Cu2Pd3Se4, a new mineral species from El Chire, La Rioja, Argentina, The Canadian Mineralogist 42, 1745-1755
  • Mendoza
    • Luján de Cuyo department
      • Cacheuta
        • Sierra de Cacheuta
          • Cerro de Cacheuta
[Clark, 1993 - "Hey's Mineral Index"]; Ahlfeld Friedrich and Angelelll Vlctorio 1948 Las especies minerales de la Republica Argentina Univ Nac Tucumftn Inst Geologla y Mineria Jujuy Pub no 458 p 47 48 49 50 54 67 69 70 71 120 121 133 134
Bolivia
 
  • Potosí Department
    • Antonio Quijarro Province
[MinRec 21:133]
    • Chayanta Province
      • Pakajake Canyon (Pacajake Canyon)
Hurlbut, C.S., Aristarain, L.F. (1969) Olsacherite Pb₂(SeO₄)(SO₄), A New Mineral from Bolivia. The American Mineralogist. Vol.5, November-December, pp. 1519-1527. Petrov, A., Smith, B., Smith, C. (2001) A Guide to Mineral Localities in Bolivia. Mineralogical Record Vol.32(6), pp. 457-482.
Canada
 
  • Ontario
    • Thunder Bay District
Liferovich & Mitchell pers. comm. L. Horváth 2005: L. Horváth 2009
France
 
  • Auvergne-Rhône-Alpes
    • Puy-de-Dôme
      • Saint-Amant-Tallende
        • Olloix
Patrice Queneau Collection
Italy
 
  • Sardinia
    • South Sardinia Province
      • Sarrabus-Gerrei
        • Gerrei
          • Villaputzu
Campostrini, I. & Gramaccioli, C. M. (2001): Selenium-rich secondary minerals from the Baccu Locci mine (Sardinia, Italy). Neues Jahrbuch fuer Mineralogie, Abhandlungen 177, 37-59.; Campostrini, I., Gramaccioli, C. M. and Demartin, F. (1999): Orlandiite, Pb3Cl4(SeO3)3•H2O, a new mineral species, and an associated lead-copper selenite chloride from the Baccu Locci mine, Sardinia, Italy. Can. Mineral. 37, 1493-1498
Russia
 
  • Far-Eastern Region
    • Kamchatka Oblast'
      • Tolbachik volcano
        • Great Fissure eruption (Main Fracture)
          • Northern Breakthrough (North Breach)
            • First scoria cone (First cinder cone)
Pekov, I. V., Zubkova, N. V., Britvin, S. N., Yapaskurt, V. O., Chukanov, N. V., Lykova, I. S., ... & Pushcharovsky, D. Y. (2015). New zinc and potassium chlorides from fumaroles of the Tolbachik volcano, Kamchatka, Russia: mineral data and crystal chemistry. III. Cryobostryxite, KZnCl3· 2H2O. European Journal of Mineralogy, 27(6), 805-812
UK
 
  • England
    • Staffordshire
      • Ecton
        • Back of Ecton
UKJMM No25, pp33-34
USA
 
  • California
    • Inyo Co.
      • Inyo Mts (Inyo Range)
        • Malpais Mesa
Paul M. Adams (2017) The Santa Rosa mine, Inyo County, California. Minerlogical Record 48:755-777
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 1993-2018, 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: October 24, 2018 02:30:58 Page generated: October 5, 2018 18:04:25
Go to top of page