Log InRegister
Quick Links : The Mindat ManualThe Rock H. Currier Digital LibraryMindat Newsletter [Free Download]
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 EducatorsMindat ArticlesThe ElementsThe Rock H. Currier Digital LibraryGeologic Time
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
Mining CompaniesStatisticsUsersMineral MuseumsClubs & OrganizationsMineral Shows & EventsThe Mindat DirectoryDevice SettingsThe Mineral Quiz
Photo SearchPhoto GalleriesSearch by ColorNew Photos TodayNew Photos YesterdayMembers' Photo GalleriesPast Photo of the Day GalleryPhotography

Sarmientite

A valid IMA mineral species - grandfathered
This page is currently not sponsored. Click here to sponsor this page.
Hide all sections | Show all sections

About SarmientiteHide

00730730014946586096651.jpg
Domingo Faustino Sarmiento
Formula:
Fe3+2(AsO4)(SO4)(OH) · 5H2O
Colour:
Light yellow-orange
Lustre:
Dull
Specific Gravity:
2.58
Crystal System:
Monoclinic
Name:
Named in honor of Domingo Faustino Sarmiento (15 February 1811, San Juan, Argentina - 11 September 1888, Asunción, Paraguay), educator, writer, and the seventh President of Argentina. He was a founder of the Cordoba Academy of Science.
Sanjuanite-Destinezite Group. Arsenate analogue of Diadochite.

An uncommon secondary mineral occurring in oxidized pyritic veins in diabase.


Unique IdentifiersHide

Mindat ID:
3536
Long-form identifier:
mindat:1:1:3536:7
GUID
(UUID V4):
13bf2c0f-77b0-4e87-9b65-382771b9e2f0

IMA Classification of SarmientiteHide

Classification of SarmientiteHide

8.DB.35

8 : PHOSPHATES, ARSENATES, VANADATES
D : Phosphates, etc. with additional anions, with H2O
B : With only medium-sized cations, (OH, etc.):RO4< 1:1
43.5.1.1

43 : COMPOUND PHOSPHATES, ETC.
5 : Hydrated Compound Phosphates, etc·, Containing Hydroxyl or Halogen
22.3.26

22 : Phosphates, Arsenates or Vanadates with other Anions
3 : Phosphates, arsenates or vanadates with sulphates

Mineral SymbolsHide

As of 2021 there are now IMA–CNMNC approved mineral symbols (abbreviations) for each mineral species, useful for tables and diagrams.

SymbolSourceReference
SmiIMA–CNMNCWarr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43

Physical Properties of SarmientiteHide

Transparency:
Translucent
Colour:
Light yellow-orange
Density:
2.58 g/cm3 (Measured)    2.58 g/cm3 (Calculated)

Optical Data of SarmientiteHide

Type:
Biaxial (+)
RI values:
nα = 1.628 nβ = 1.635 nγ = 1.698
2V:
Measured: 38° , Calculated: 38°
Max Birefringence:
δ = 0.070
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Surface Relief:
Moderate
Dispersion:
weak to distinct

Chemistry of SarmientiteHide

Mindat Formula:
Fe3+2(AsO4)(SO4)(OH) · 5H2O

Crystallography of SarmientiteHide

Crystal System:
Monoclinic
Class (H-M):
2/m - Prismatic
Space Group:
P21/b
Setting:
P21/c
Cell Parameters:
a = 6.55 Å, b = 18.55 Å, c = 9.70 Å
β = 97.65°
Ratio:
a:b:c = 0.353 : 1 : 0.523
Unit Cell V:
1,168.08 ų (Calculated from Unit Cell)
Z:
4
Morphology:
Crystals prismatic [001] and flattened {010}, exhibiting {010}, {110} and {011}. Microcrystalline (to 20 μm) forming nodular masses as aggregates.

Crystal StructureHide

Load
Unit Cell | Unit Cell Packed
2x2x2 | 3x3x3 | 4x4x4
Show
Big Balls | Small Balls | Just Balls | Spacefill
Polyhedra Off | Si Polyhedra | All Polyhedra
Remove metal-metal sticks
Display Options
Black Background | White Background
Perspective On | Perspective Off
2D | Stereo | Red-Blue | Red-Cyan
View
CIF File    Best | x | y | z | a | b | c
Rotation
Stop | Start
Labels
Console Off | On | Grey | Yellow
IDSpeciesReferenceLinkYearLocalityPressure (GPa)Temp (K)
0020437SarmientiteColombo F, Rius J, Vallcorba O, Pannunzio Miner E V (2014) The crystal structure of sarmientite, Fe3+2(AsO4)(SO4)(OH)*5H2O, solved ab initio from laboratory powder diffraction data Mineralogical Magazine 78 347-3602014Santa Elena mine, San Juan Province, Argentina0293
CIF Raw Data - click here to close

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
9.29 Å(100)
4.87 Å(38)
4.64 Å(90)
4.26 Å(80)
3.43 Å(40)
3.06 Å(70)
2.60 Å(48)

Geological EnvironmentHide

Type Occurrence of SarmientiteHide

General Appearance of Type Material:
Pure, irregular nodules made up of minute prismatic crystals to 25 microns in length.
Place of Conservation of Type Material:
The Academy of Natural Sciences of Philadelphia?
Geological Setting of Type Material:
Fe-sulfate gossan over pyrite vein.
Associated Minerals at Type Locality:
Reference:
Angelelli, V., Gordon, S.G. (1941) Sarmientite, a new mineral from Argentina. Notulae Naturae of The Academy of Natural Sciences of Philadelphia: 92: 1-4.

Other Language Names for SarmientiteHide

German:Sarmientit
Spanish:Sarmientita

Relationship of Sarmientite to other SpeciesHide

Other Members of this group:
DestineziteFe3+2(PO4)(SO4)(OH) · 6H2OTric. 1 : P1
SanjuaniteAl2(PO4)(SO4)(OH) · 9H2OTric.
ZýkaiteFe3+4(AsO4)3(SO4)(OH) · 15H2OOrth. 2 2 2 : P2 2 2

Common AssociatesHide

Associated Minerals Based on Photo Data:
1 photo of Sarmientite associated with HilarioniteFe3+2(SO4)(AsO4)(OH) · 6H2O

Related Minerals - Strunz-mindat GroupingHide

8.DB.ArangasiteAl2F(PO4)(SO4) · 9H2O Mon. 2/m : P2/b
8.DB.Camaronesite[Fe3+(H2O)2(PO3OH)]2(SO4) · 1-2H2OTrig. 3 2 : R3 2
8.DB.HösliteFe3+3(VO4)2(SO4)(OH)(H2O)4 · 3H2OMon. 2/m : P21/b
8.DB.05DiadochiteFe3+2(PO4)(SO4)(OH) · 6H2OAmor.
8.DB.05Pitticite(Fe, AsO4, H2O) (?)Amor.
8.DB.05DestineziteFe3+2(PO4)(SO4)(OH) · 6H2OTric. 1 : P1
8.DB.07WilhelmgümbeliteZnFe2+Fe3+3(PO4)3(OH)4(H2O)5 · 2H2OOrth. mmm (2/m 2/m 2/m)
8.DB.07Schmidite[Zn2(Fe3+,Mn2+)2Fe3+(PO4)3(OH)3(H2O)6] · 2H2OOrth.
8.DB.07WildenaueriteZn(Fe3+,Mn2+)2MnFe3+(PO4)3(OH)3(H2O)6 · 2H2OOrth. mmm (2/m 2/m 2/m) : Pbam
8.DB.10VashegyiteAl11(PO4)9(OH)6 · 38H2OOrth. mmm (2/m 2/m 2/m)
8.DB.15SchooneriteZnMn2+Fe2+2Fe3+(PO4)3(OH)2 · 9H2OOrth. mmm (2/m 2/m 2/m) : Pbam
8.DB.20SinkankasiteMn2+Al(PO3OH)2(OH) · 6H2OTric. 1 : P1
8.DB.25MitryaevaiteAl6(PO4)((P,S)O3(OH,O))2F2(OH)2 · 14.5H2OTric. 1 : P1
8.DB.30SanjuaniteAl2(PO4)(SO4)(OH) · 9H2OTric.
8.DB.40BukovskýiteFe3+2(AsO4)(SO4)(OH) · 9H2OTric. 1 : P1
8.DB.40FlurliteZn3Mn2+Fe3+(PO4)3(OH)2 · 9H2OMon. 2/m : P21/m
8.DB.40ManganflurliteZnMn2+3Fe3+(PO4)3(OH)2(H2O)7 · 2H2OMon. 2/m : P21/m
8.DB.42BohuslaviteFe3+4(PO4)3(SO4)(OH) · nH2OTric. 1 : P1
8.DB.45ZýkaiteFe3+4(AsO4)3(SO4)(OH) · 15H2OOrth. 2 2 2 : P2 2 2
8.DB.47LapeyreiteCu3O[AsO3(OH)]2 · 0.75H2OMon. 2/m : B2/m
8.DB.50GiniiteFe2+Fe3+4(PO4)3(OH)5 · 2H2OMon. 2/m : P2/b
8.DB.50RossiantoniteAl3(PO4)(SO4)2(OH)2(H2O)14Tric. 1 : P1
8.DB.52ArctowskiteAl9(PO4)8(OH)3 · 27H2OOrth.
8.DB.55Sasaite(Al,Fe3+)14(PO4)11(SO4)(OH)7 · 83H2OOrth.
8.DB.60McauslaniteFe3Al2(PO4)3(PO3OH)F · 18H2OTric.
8.DB.65GoldquarryiteCuCd2Al3(PO4)4F2(H2O,F)2 · 10H2OTric. 1 : P1
8.DB.70BirchiteCd2Cu2(PO4)2(SO4) · 5H2OOrth. mmm (2/m 2/m 2/m) : Pnma
8.DB.75BraithwaiteiteNaCu5(Ti4+Sb5+)(AsO4)4(HAsO4)2O2 · 8H2OTric. 1 : P1

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.

Internet Links for SarmientiteHide

References for SarmientiteHide

Reference List:

Localities for SarmientiteHide

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 references and 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 (e.g. from pseudomorphs).

All localities listed without proper references should be considered as questionable.
Argentina (TL)
 
  • San Juan Province
    • Calingasta Department
      • Calingasta
        • Quebrada Alcaparrosa
Greece
 
  • Attica
    • East Attica
      • Lavreotiki
        • Lavrion Mining District
          • Agios Konstantinos (Kamariza)
            • Kamariza Mines (Kamareza Mines)
            • Mercati mines
Morocco
 
  • Drâa-Tafilalet Region
    • Ouarzazate Province
      • Amerzgane Cercle
        • Ouisselsate Caïdat
South Africa
 
  • KwaZulu-Natal
    • uMgungundlovu District Municipality
USA
 
  • Alaska
    • Northwest Arctic Borough
  • Nevada
    • Humboldt County
      • Winnemucca Mining District
    • Nye County
      • Toquima Range
        • Manhattan Mining District
          • Manhattan
 
Mineral and/or Locality  
Mindat Discussions Facebook Logo Instagram Logo Discord Logo
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 1993-2024, except where stated. Most political location boundaries are © OpenStreetMap contributors. Mindat.org relies on the contributions of thousands of members and supporters. Founded in 2000 by Jolyon Ralph.
Privacy Policy - Terms & Conditions - Contact Us / DMCA issues - Report a bug/vulnerability Current server date and time: April 26, 2024 17:21:03 Page updated: October 9, 2023 09:06:36
Go to top of page