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Amarillite Mineral Data

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General Amarillite Information

Help on Chemical  Formula: Chemical Formula: NaFe+++(SO4)2•6(H2O)
Help on Composition: Composition: Molecular Weight = 379.06 gm
   Sodium     6.07 %  Na    8.18 % Na2O
   Iron      14.73 %  Fe   21.06 % Fe2O3
   Hydrogen   3.19 %  H    28.52 % H2O
   Sulfur    16.92 %  S    42.24 % SO3
   Oxygen    59.09 %  O
            ______        ______ 
            100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: NaFe3+(SO4)2•6(H2O)
Help on Environment: Environment: Oxidation zones of sulfide deposits.
Help on IMA Status: IMA Status: Valid Species (Pre-IMA) 1933
Help on Locality: Locality: Tierra Amarilla, southeast of Copiapo, Atacama, Chile Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for the locality.
Help on Name Pronunciation: Name Pronunciation: Amarillite + Pronunciation Say AMARILLITE
Help on Synonym: Synonym: ICSD 69132
  PDF 80-1306
 

Amarillite Image

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  Amarillite

Comments: Yellowish white, powdery crystals of amarillite crystals.
Location: Grotta de Faraglione, Porte de Levante, Island de Vulcano, Italy. Scale: Specimen Size 15 x10 x 7 mm.
© Sergey Vasiliev / Systematic Mineralogy

Amarillite Crystallography

Help on Axial Ratios: Axial Ratios: a:b:c =0.7765:1:1.1504
Help on Cell Dimensions: Cell Dimensions: a = 8.419, b = 10.8409, c = 12.4717, Z = 4; beta = 95.495° V = 1,133.06 Den(Calc)= 2.22
Help on Crystal System: Crystal System: Monoclinic - Prismatic H-M Symbol (2/m) Space Group: C 2/c
Help on Forms: Forms:

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Drag1 - Manipulate Crystal
Drag2 - Resize

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I - Indicies
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Help on Above

Forms: ( 3 3 1) ( 1 1 2) ( 1 0 1) ( 1 1 1) ( 1 1 2) ( 1 1 0) ( 1 1 3) ( 1 1 1) ( 1 0 0) ( 0 0 1)

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Physical Properties of Amarillite

Help on Cleavage: Cleavage: {110} Good
Help on Color: Color: Greenish yellow, Light yellow.
Help on Density: Density: 2.19
Help on Diaphaneity: Diaphaneity: Transparent
Help on Fracture: Fracture: Conchoidal - Fractures developed in brittle materials characterized by smoothly curving surfaces, (e.g. quartz).
Help on Hardness: Hardness: 2.5-3 - Finger Nail-Calcite
Help on Luster: Luster: Vitreous - Adamantine
Help on Streak: Streak: white
 

Optical Properties of Amarillite

Help on Gladstone-Dale: Gladstone-Dale: CI meas= -0.007 (Superior) - where the CI = (1-KPDmeas/KC)
CI calc= 0.007 (Superior) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.252,KPDmeas= 0.2554,KC= 0.2536
Ncalc = 1.56
Help on Optical Data: Optical Data: Biaxial (+), a=1.532, b=1.555, g=1.591, bire=0.0590
 

Calculated Properties of Amarillite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=2.26 gm/cc
note: Specific Gravity of Amarillite =2.22 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.0046807815
Boson Index = 0.9953192185
Help on Photoelectric: Photoelectric: PEAmarillite = 5.42 barns/electron
U=PEAmarillite x rElectron Density= 12.24 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Amarillite is Not Radioactive
 

Amarillite Classification

Help on  Dana Class: Dana Class: 29.05.03.02 (29)Hydrated Acid and Sulfates
  (29.05)where A B (XO4)2 � x(H2O)
  (29.05.03)Dana Group
 
29.05.03.01 Tamarugite NaAl(SO4)2•6(H2O) P 21/a 2/m
 
29.05.03.02 Amarillite NaFe(SO4)2•6(H2O) C 2/c 2/m
Help on  Strunz Class: Strunz Class: 07.CC.75 07 - SULFATES (SELENATES, TELLURATES)
  07.C - Sulfates (selenates, etc.) without Additional Anions, with H2O
  07.CC -With medium-sized and large cations
 
07.CC.75 Amarillite NaFe(SO4)2•6(H2O) C 2/c 2/m
 

Other Amarillite Information

Help on References: References: NAME( AntBidBlaNic5) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Enc. of Minerals,2nd ed.,1990)
Help on See Also: See Also: Links to other databases for Amarillite :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - EUROmin Project
4 - Ecole des Mines de Paris
5 - GeoScienceWorld
6 - Google Images
7 - Google Scholar
8 - Handbook of Mineralogy (MinSocAm)
9 - Handbook of Mineralogy (UofA)
10 - MinDAT
11 - Mineralienatlas (Deutsch)
12 - Online Mineral Museum
13 - QUT Mineral Atlas
14 - Ruff.Info

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Print or Cut-and-Paste your Amarillite Specimen Label here :

Amarillite

NaFe+++(SO4)2•6(H2O)
Dana No: 29.05.03.02 Strunz No: 07.CC.75
Locality:

 

Notes:

 

 
   
 


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