Springcreekite Mineral Data

Springcreekite Mineral Data

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General Springcreekite Information

Chemical Formula:

BaV+++3(PO4)2(OH,H2O)6

Composition:

Molecular Weight = 583.65 gm

Barium 23.53 % Ba 26.27 % BaO

Vanadium 26.18 % V 38.52 % V₂O₃

Phosphorus 10.61 % P 24.32 % P₂O₅

Hydrogen 1.30 % H 11.57 % H₂O

Oxygen 38.38 % O

______ ______

100.00 % 100.69 % = TOTAL OXIDE

Empirical Formula:

BaV³⁺₃(PO₄)₂(OH)_4.5(H₂O)_1.5

Environment:

In a cavity in brecciated quartz-geothite rock. A member of the crandallite group.

IMA Status:

Approved IMA 1998 (Dana # Added)

Locality:

The dumps of the Spring Creek copper mine near Wilminton, Southern Flinders Ranges, South Australia. Link to MinDat.org Location Data.

Name Origin:

Named after the locality.

Synonym:

ICSD 89037

IMA1998-048

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Springcreekite Crystallography

Axial Ratios:

a:c = 1:2.39198

Cell Dimensions:

a = 7.258, c = 17.361, Z = 3; V = 792.03 Den(Calc)= 3.67

Crystal System:

Trigonal - Hexagonal ScalenohedralH-M Symbol (3 2/m) Space Group: R 3m

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

By Intensity(I/I_o): 3.073(1)(113), 5.9(0.9)(101), 1.971(0.5)(033),1.814(0.4)(220), 2.301(0.4)(107,122), 3.627(0.4)(110),

Physical Properties of Springcreekite

Cleavage:

[102] Poor

Color:

Black.

Density:

3.48

Diaphaniety:

Opaque to translucent

Fracture:

Brittle - Irregular - Very brittle fracture producing irregular fragments

Habit:

Pseudo Cubic - Crystals show a cubic outline.

Habit:

Rhombohedral Crystals - Occurs as well-formed crystals showing rhobohedral crystals.

Hardness:

4-5 - Fluorite-Apatite

Luster:

Vitreous - Dull

Streak:

brownish black

Optical Properties of Springcreekite

Gladstone-Dale:

CI meas= -0.07 (Fair) - where the CI = (1-KPDmeas/KC)
CI calc= -0.014 (Superior) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2282,KPDmeas= 0.2407,KC= 0.225

Optical Data:

Uniaxial (-), e=1.817, w=1.858, bire=0.0410.

Calculated Properties of Springcreekite

Electron Density:

r_electron=3.45 gm/cc
note: r_{Springcreekite}=3.67 gm/cc.

Fermion Index

Fermion Index = 0.04277
Boson Index = 0.95723

Photoelectric:

PE_{Springcreekite}= 105.91 barns/electron
U=PE_{Springcreekite} x r_electron= 365.62 barns/cc.

Radioactivity:

GRapi = 0 (Gamma Ray American Petroleum Institute Units)

Springcreekite is Not Radioactive

Springcreekite Classification

Dana Class:

42.7.3.8 (42)Hydrated Phosphates, etc., Containing Hydroxyl or Halogen

(42.7)where (AB)5 (XO4)3 Zq · x(H2O)

(42.7.3)Dana Group

42.7.3.1 Crandallite CaAl3(PO4)2(OH)5·(H2O) R 3m 3 2/m

42.7.3.2 Gorceixite BaAl3(PO4)(PO3OH)(OH)6 Cm m

42.7.3.3 Goyazite SrAl3(PO4)2(OH)5·(H2O) R 3m 3 2/m

42.7.3.4 Lusungite? (Sr,Pb)Fe3(PO4)2(OH)5·(H2O) R 3m 3m

42.7.3.5 Plumbogummite PbAl3(PO4)2(OH)5·(H2O) R 3m 3 2/m

42.7.3.6 Kintoreite PbFe3(PO4)2(OH,H2O)6 R 3m 3 2/m

42.7.3.7 Benauite! HSrFe3(PO4)2(OH)6 R 3m 3 2/m

42.7.3.8 Springcreekite ! BaV3(PO4)2(OH,H2O)6 R 3m 3 2/m

Strunz Class:

VII/B.36-155 VII - Phosphates, Arsenates and Vanadates

VII/B - Waterfree phosphates with unfamiliar anions F, Cl, O, OH. cations of medium and big size: Mg, Cu, Zn, and Ca, Na, K, Ba, Pb

VII/B.36 - Crandallite group

VII/B.36-10 Crandallite CaAl3(PO4)2(OH)5·(H2O) R 3m 3 2/m

VII/B.36-20 Arsenocrandallite (Ca,Sr)Al3[(As,P)O4]2(OH)5·(H2O) R 3m 3m

VII/B.36-30 Goyazite SrAl3(PO4)2(OH)5·(H2O) R 3m 3 2/m

VII/B.36-40 Arsenogoyazite (Sr,Ca,Ba)Al3(AsO4,PO4)2(OH,F)5·(H2O) R 3m 3 2/m

VII/B.36-50 Gorceixite BaAl3(PO4)(PO3OH)(OH)6 Cm m

VII/B.36-60 Arsenogorceixite! BaAl3AsO3(OH)(AsO4,PO4)(OH,F)6 R 3m 3 2/m

VII/B.36-70 Plumbogummite PbAl3(PO4)2(OH)5·(H2O) R 3m 3 2/m

VII/B.36-80 Philipsbornite PbAl3(AsO4)2(OH)5·(H2O) R 3m-,R 3m Trig

VII/B.36-90 Waylandite BiAl3(PO4)2(OH)6 R 3m 3 2/m

VII/B.36-100 Eylettersite (Th,Pb)1-xAl3(PO4,SiO4)2(OH)6(?) R 3m 3 2/m

VII/B.36-110 Florencite-(Ce) CeAl3(PO4)2(OH)6 R 3m 3 2/m

VII/B.36-120 Arsenoflorencite-(Ce) (Ce,La)Al3(AsO4)2(OH)6 R 3m 3 2/m

VII/B.36-125 Arsenoflorencite-(La)* (La,Sr)Al3(AsO4,SO4,PO4)2(OH)6 R 3m 3m

VII/B.36-130 Florencite-(La) (La,Ce)Al3(PO4)2(OH)6 R 3m 3 2/m

VII/B.36-135 Arsenoflorencite-(Nd)* (Nd,La,Ce,Ba)(Al,Fe)3(AsO4,PO4)2(OH)6 R 3m 3m

VII/B.36-140 Florencite-(Nd) (Nd,Ce)Al3(PO4)2(OH)6 R 3m 3 2/m

VII/B.36-150 Benauite! HSrFe3(PO4)2(OH)6 R 3m 3 2/m

VII/B.36-150* Lusungite? (Sr,Pb)Fe3(PO4)2(OH)5·(H2O) R 3m 3m

VII/B.36-152 Graulichite-(Ce)! CeFe3(AsO4)2(OH)6 R 3m 3 2/m

VII/B.36-155 Springcreekite BaV3(PO4)2(OH,H2O)6 R 3m 3 2/m

VII/B.36-160 Dussertite BaFe3(AsO4)2(OH)5 R 3m 3m

VII/B.36-170 Zairite Bi(Fe,Al)3(PO4)2(OH)6 R 3m 3 2/m

Other Springcreekite Information

References:

NAME( MinRec, v 32, p 221) PHYS. PROP.(MinRec, v 32, p 221) OPTIC PROP.(MinRec, v 32, p 221)

See Also:

Links to other databases for Springcreekite :
1 -Am. Min. Crystal Structure Database 2 -Athena 3 - Crocoite.com Mineral Locations 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

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

Springcreekite

BaV+++3(PO4)2(OH,H2O)6
Dana No: 42.7.3.8 Strunz No: VII/B.36-155
Locality:

Notes: