Rodalquilarite Mineral Data

Rodalquilarite Mineral Data +

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General Rodalquilarite Information

Chemical Formula:

H3Fe+++2(Te++++O3)4Cl

Composition:

Molecular Weight = 850.55 gm

Iron 13.13 % Fe 18.78 % Fe₂O₃

Tellurium 60.01 % Te 75.06 % TeO₂

Hydrogen 0.12 % H 1.06 % H₂O

Chlorine 4.17 % Cl 4.17 % Cl

- % Cl -0.94 % -O=Cl₂

Oxygen 22.57 % O

______ ______

100.00 % 98.12 % = TOTAL OXIDE

Empirical Formula:

HFe³⁺₂(TeO₃)₄Cl

IMA Status:

Approved IMA 1968

Locality:

Rodalquilar gold deposit, Almeria, Spain. Link to MinDat.org Location Data.

Name Origin:

Named for the locality.

Synonym:

ICSD 50706

PDF 20-356

Rodalquilarite Image

Images:

Rodalquilarite

Comments: Green crystals of rodalquilarite on matrix.
Location: Tombstone, Tombstone District, Cochise Co., Arizona, USA. Scale: Picture size 4 m.
© Thomas Witzke / Abraxas-Verlag

Images:

Rodalquilarite Schieffelinite

Comments: Creamy white Schieffelinite with minor green rodalquilarite.
Location: Tombstone, Tombstone District, Cochise Co., Arizona, USA. Scale: Picture size 6 mm.
© Thomas Witzke / Abraxas-Verlag

Rodalquilarite Crystallography

Axial Ratios:

a:b:c =1.75:1:1.3051

Cell Dimensions:

a = 8.89, b = 5.08, c = 6.63, Z = 1; alpha = 103.2°, beta = 107.1°, gamma = 77.87° V = 272.40 Den(Calc)= 5.18

Crystal System:

TriclinicSpace Group: P1 or P1

$Help on X Ray Diffraction:$ X Ray Diffraction:

By Intensity(I/I_o): 4.24(1), 2.62(0.8), 3.31(0.6),

Physical Properties of Rodalquilarite

Cleavage:

[???] Good

Color:

Grass green, Emerald green.

Density:

5.05 - 5.15, Average = 5.09

Fracture:

Brittle - Generally displayed by glasses and most non-metallic minerals.

Habit:

Encrustations - Forms crust-like aggregates on matrix.

Habit:

Microscopic Crystals - Crystals visible only with microscopes.

Hardness:

2-3 - Gypsum-Calcite

Luster:

Greasy (Oily)

Streak:

light green

Optical Properties of Rodalquilarite

Gladstone-Dale:

CI meas= 0.006 (Superior) - where the CI = (1-KPDmeas/KC)
CI calc= 0.021 (Excellent) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.222,KPDmeas= 0.2255,KC= 0.2268

Optical Data:

Biaxial (-), a=2.1, g=2.2, bire=0.1000, 2V(Meas)=38.

Calculated Properties of Rodalquilarite

Electron Density:

r_electron=4.49 gm/cc
note: r_{Rodalquilarite}=5.10 gm/cc.

Fermion Index

Fermion Index = 0.05083
Boson Index = 0.94917

Photoelectric:

PE_{Rodalquilarite}= 214.02 barns/electron
U=PE_{Rodalquilarite} x r_electron= 959.92 barns/cc.

Radioactivity:

GRapi = 0 (Gamma Ray American Petroleum Institute Units)

Rodalquilarite is Not Radioactive

Rodalquilarite Classification

Dana Class:

34.6.2.1 (34)Selenites - Tellurites - Sulfites

(34.6)Dana Type

(34.6.2)Dana Group

34.6.2.1 Rodalquilarite H3Fe2(TeO3)4Cl P1 or P1 Tri

Strunz Class:

IV/K.09-40 IV - Oxides

IV/K - Sulfides, selenides, tellurides with [XO3]2- groups and related structures

IV/K.09 - Blakeite ? - Poughite series

IV/K.09-10 Blakeite* Fe2(TeO3)3 Cubic ? Cubic

IV/K.09-20 Sonoraite FeTeO3(OH)·(H2O) P 2₁/c 2/m

IV/K.09-30 Emmonsite Fe2Te3O9·2(H2O) P1 1

IV/K.09-40 Rodalquilarite H3Fe2(TeO3)4Cl P1 or P1 Tri

IV/K.09-50 Poughite Fe2(TeO3)2(SO4)·3(H2O) Pmnb 2/m 2/m 2/m

Other Rodalquilarite Information

References:

NAME( Dana8) PHYS. PROP.(Dana8) OPTIC PROP.(Dana8)

See Also:

Links to other databases for Rodalquilarite :
1 -Am. Min. Crystal Structure Database 2 -Athena 3 - EUROmin Project 4 -Google Images 5 -Google Scholar 6 -Handbook of Mineralogy (UofA) 7 -MinDAT 8 -MinMax(Deutsch) 9 -MinMax(English) 10 -Mineralienatlas (Deutsch) 11 -QUT Mineral Atlas 12 - WWW-MINCRYST 13 -École des Mines de Paris

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Rodalquilarite

H3Fe+++2(Te++++O3)4Cl
Dana No: 34.6.2.1 Strunz No: IV/K.09-40
Locality:

Notes: