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Tamarugite Mineral Data

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General Tamarugite Information

Help on Chemical Formula: Chemical Formula: NaAl(SO4)2•6(H2O)
Help on Composition: Composition: Molecular Weight = 350.19 gm
   Sodium     6.56 %  Na    8.85 % Na2O
   Aluminum   7.70 %  Al   14.56 % Al2O3
   Hydrogen   3.45 %  H    30.87 % H2O
   Sulfur    18.31 %  S    45.73 % SO3
   Oxygen    63.96 %  O
            ______        ______ 
            100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: NaAl(SO4)2•6(H2O)
Help on IMA Status: IMA Status: Valid Species (Pre-IMA) 1889
Help on Locality: Locality: Tamarugal Pampa, Cerro Pintado, Tarapaca, Chile Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for the locality.
Help on Name Pronunciation: Name Pronunciation: Tamarugite + Pronunciation Say TAMARUGITE
Help on Synonym: Synonym: ICSD 15187
  PDF 19-1186
 

Tamarugite Image

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  Blodite   Tamarugite

Comments: Clear, yellow blödite with white tamarugite.
Location: Willi Agatz Mine, Dresden, Saxony, Germany. Scale: Picture size 7 mm.
© Thomas Witzke / Abraxas-Verlag
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  Metasideronatrite   Tamarugite

Comments: Orange metasideronatrite with white tamarugite.
Location: Willi Agatz Mine, Dresden, Saxony, Germany. Scale: Picture size 5 mm.
© Thomas Witzke / Abraxas-Verlag
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  Tamarugite

Comments: Small white flakes of Tamarugite.
Location: Carola Mine, Freital, near Dresden, Saxony, Germany. Scale: Picture size 5 mm.
© Thomas Witzke / Abraxas-Verlag

Tamarugite Crystallography
Help on Axial Ratios: Axial Ratios: a:b:c =0.2914:1:0.2417
Help on Cell Dimensions: Cell Dimensions: a = 7.353, b = 25.225, c = 6.097, Z = 4; beta = 95.2° V = 1,126.21 Den(Calc)= 2.07
Help on Crystal System: Crystal System: Monoclinic - Prismatic H-M Symbol (2/m) Space Group: P 21/a
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 4.223(1), 4.207(0.8), 3.647(0.59),
Help on Forms: Forms:

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

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Physical Properties of Tamarugite

Help on Cleavage: Cleavage: {010} Perfect
Help on Color: Color: Colorless.
Help on Density: Density: 2.06
Help on Diaphaneity: Diaphaneity: Transparent
Help on Habit: Habit: Massive - Granular - Common texture observed in granite and other igneous rock.
Help on Habit: Habit: Prismatic - Crystals Shaped like Slender Prisms (e.g. tourmaline).
Help on Habit: Habit: Tabular - Form dimensions are thin in one direction.
Help on Hardness: Hardness: 3 - Calcite
Help on Luster: Luster: Vitreous (Glassy)
Help on Streak: Streak: white
 

Optical Properties of Tamarugite

Help on Gladstone-Dale: Gladstone-Dale: CI meas= -0.02 (Excellent) - where the CI = (1-KPDmeas/KC)
CI calc= -0.015 (Superior) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2362,KPDmeas= 0.2374,KC= 0.2328
Ncalc = 1.48
Help on Optical Data: Optical Data: Biaxial (+), a=1.484, b=1.486, g=1.497, bire=0.0130, 2V(Calc)=48, 2V(Meas)=60.
 

Calculated Properties of Tamarugite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=2.13 gm/cc
note: Specific Gravity of Tamarugite =2.07 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.0016857133
Boson Index = 0.9983142867
Help on Photoelectric: Photoelectric: PETamarugite = 1.51 barns/electron
U=PETamarugite x rElectron Density= 3.21 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Tamarugite is Not Radioactive
 

Tamarugite Classification
Help on Dana Class: Dana Class: 29.05.03.01 (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.10 07 - SULFATES (SELENATES, TELLURATES)
  07.C - Sulfates (selenates, etc.) without Additional Anions, with H2O
  07.CC -With medium-sized and large cations
 
07.CC.10 Tamarugite NaAl(SO4)2•6(H2O) P 21/a 2/m
 

Other Tamarugite Information
Help on References: References: NAME( Dana8) 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 Tamarugite :
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
15 - WWW-MINCRYST

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

Tamarugite

NaAl(SO4)2•6(H2O)
Dana No: 29.05.03.01 Strunz No: 07.CC.10
Locality:

 

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