Mindat Logo
Home Page Log In Message Board The Mindat Directory
Register Search Pages Chat Now! (14 online) Mindat Auctions

Angelellite

Big Photo

Vela Yareta Mine (Yareta adit), Cerro Pululus, Laguna Vilama, Jujuy, Argentina
© 2008, JGW

Formula:
Fe
3+
4
[O
 
3
|(AsO
 
4
)
 
2
]
System:TriclinicColour:reddish brown, blackish ...
Lustre:AdamantineHardness:5½
Name:For Argentine mineralogist Victorio Angelelli
This page provides mineralogical data about Angelellite.

Classification of Angelellite

IMA status:Approved
Strunz 8th edition ID:7/B.09-20
Nickel-Strunz 10th (pending) edition ID:8.BC.05

8 : PHOSPHATES, ARSENATES, VANADATES
B : Phosphates, etc., with additional anions, without H2O
C : With only medium-sized cations, (OH, etc.):RO4 > 1:1 and < 2:1
Dana 8th edition ID:41.6.10.1

41 : ANHYDROUS PHOSPHATES, ETC.CONTAINING HYDROXYL OR HALOGEN
6 : A2(XO4)Zq
Hey's CIM Ref.:20.9.1

20 : Arsenates (also arsenates with phosphate, but without other anions)
9 : Arsenates of Fe
mindat.org URL:http://www.mindat.org/min-231.html
Please feel free to link to this page.

Type Occurrence of Angelellite

Type Locality:Vela Yareta Mine (Yareta adit), Cerro Pululus, Laguna Vilama, Jujuy, Argentina
Year of Discovery:1959

Physical Properties of Angelellite

Lustre:Adamantine
Colour:reddish brown, blackish brown
Streak:reddish brown
Hardness (Mohs):5½
Cleavage:Poor/Indistinct

Crystallography of Angelellite

Crystal System:Triclinic
Cell Parameters:a = 5.03Å, b = 6.49Å, c = 7.11Å
α = 114.4°, β = 116.4°, γ = 81.9°
Ratio:a:b:c = 0.775 : 1 : 1.096
Unit Cell Volume:V 189.07 ų (Calculated from Unit Cell)

Optical Data of Angelellite

Type:Biaxial (+)
RI values: nα = 2.130 nβ = 2.200 nγ = 2.400
Maximum Birefringence:δ = 0.270

Chart shows birefringence interference colour range (at 30µm thickness) and does not take into account mineral colouration.
Surface Relief:Very High
Dispersion:r < v

Chemical Properties of Angelellite

Formula:
Fe
3+
4
[O
 
3
|(AsO
 
4
)
 
2
]
Essential elements:As, Fe, O
All elements listed in formula:As, Fe, O

Relationship of Angelellite to other Species

Related Minerals - Nickel-Strunz Grouping):

- +
8.BC.10Frondelite
Mn
2+
 
Fe
3+
4
[(OH)
 
5
|(PO
 
4
)
 
3
]
8.BC.10Rockbridgeite
Fe
2+
 
Fe
3+
4
[(OH)
 
5
|(PO
 
4
)
 
3
]
8.BC.15Aerugite
Ni
 
8.5
(AsO
 
4
)
 
3
As
5+
 
O
 
8
Related Minerals - Hey's Index Grouping:

- +
20.9.2Scorodite
Fe
3+
 
AsO
 
4
·2H
 
2
O
20.9.3Kaňkite
FeAsO
 
4
·3.5H
 
2
O
20.9.4Ferrisymplesite
Fe
3+
3
[(OH)
 
3
|(AsO
 
4
)
 
2
] · 5H
 
2
O
20.9.5Kaatialaite
Fe(H
 
2
AsO
 
4
)
 
3
·5H
 
2
O
20.9.6Symplesite
Fe
2+
3
(AsO
 
4
)
 
2
·8H
 
2
O
20.9.7Parasymplesite
Fe
2+
3
(AsO
 
4
)
 
2
·8H
 
2
O
20.9.8Natropharmacosiderite
(Na,K)Fe
3+
4
[(OH)
 
4
|(AsO
 
4
)
 
3
] · 6-7H
 
2
O
20.9.9Pharmacosiderite
KFe
3+
4
[(OH)
 
4
|(AsO
 
4
)
 
3
] · 6-7H
 
2
O
20.9.10Kolfanite
Ca
 
2
Fe
3+
2
[O
 
2
|(AsO
 
4
)
 
3
] · 2H
 
2
O
20.9.11Arseniosiderite
Ca
 
2
Fe
3+
3
[O
 
2
|(AsO
 
4
)
 
3
] · 3H
 
2
O
20.9.12Yukonite
Ca
 
3
Fe
3+
 
[(OH)
 
3
|(AsO
 
4
)
 
2
] · 5H
 
2
O
20.9.13Dussertite
BaFe
3+
3
[(OH)
 
5
|(AsO
 
4
)
 
2
]
20.9.14Liskeardite
(Al,Fe
3+
 
)
 
3
[(OH)
 
6
|AsO
 
4
] · 5H
 
2
O
20.9.15Mapimite
Zn
 
2
Fe
3+
3
[(OH)
 
4
|(AsO
 
4
)
 
3
] · 10H
 
2
O
20.9.16Ogdensburgite
Ca
 
2
Fe
3+
4
(Zn,Mn
2+
 
)[(OH)
 
3
|(AsO
 
4
)
 
2
]
 
2
 · 6H
 
2
O
20.9.17Walentaite
H(Ca,Mn
2+
 
,Fe
2+
 
)Fe
3+
3
[(AsO
 
4
,PO
 
4
)]
 
4
 · 7H
 
2
O

Other Names for Angelellite

Other Languages:
German:Angelellit
Russian:Ангелеллит
Spanish:Angelellita

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 Angelellite

Reference List:American Mineralogist: 44: 1322.

Neues Jahrbuch für Mineralogie, Abhandlungen: 132: 91-100.

Articles/Blogs about Angelellite

Internet Links for Angelellite

Search Engines:
  • Look for Angelellite on Google
  • Look for Angelellite images on Google
    • External Links:
  • Look for Angelellite on Webmineral
  • Look for Angelellite on Athena Mineralogy
  • Look for Angelellite on Wikipedia
  • Look for Angelellite on Mineralien Atlas
  • Raman and XRD data at RRUFF project
  • American Mineralogist Crystal Structure Database
  • Search for Angelellite in the Natural History Museum (London) online catalogue
    • Mineral Dealers:
  • Rare and Unusual minerals at Mineralogical Research Company
  • Top quality minerals from Kristalle of California
  • Buy Minerals and Crystals from Crystalarium.com
  • Fabre Minerals - search for Angelellite specimens
  • Buy minerals from Mineralium.com
  • Search for Angelellite on minvision.com
  • Search for Angelellite at Thames Valley Minerals
  • Wendel Minerals - Auktion & Shop
  • Wright's Rock Shop - excellent mineral specimens since 1970
  • Buy Fine Minerals from mineralsweb.com
  • The Arkenstone - Fine Minerals
  • Lapis Mineral Magazin
    • Jobs:
  • Mining & Geology Jobs

    • Page Sponsor

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

    Localities for Angelellite

    (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.
    Argentina
     
    • Jujuy
      • Laguna Vilama
        • Cerro Pululus
    		Neues Jahrb.Mineral., Mh. (1959) 145-151 (and 152-158); Anthony, Bideaux, Bladh, Nichols: "Handbook of Mineralogy", Vol. 4, 2000
    Mineral and/or Locality
    Google
     
    www.mindat.org Web
    Copyright © Jolyon & Ida Ralph 1993-2008. 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.