Stanleyite Mineral Data

Stanleyite Mineral Data +

[Thumbnails] [Miniatures] [Cabinets] [About Us] [FAQ]
Welcome To Mason's Minerals
Your Source for Beautiful Minerals and Crystals
We offer a no-questioned-asked Satisfaction Guarantee

General Stanleyite Information

Chemical Formula:

(V++++O)SO4·6(H2O)

Composition:

Molecular Weight = 271.10 gm

Vanadium 18.79 % V 33.55 % V₂O₅

Hydrogen 4.46 % H 39.87 % H₂O

Sulfur 11.83 % S 29.53 % SO₃

Oxygen 64.92 % O

______ ______

100.00 % 102.95 % = TOTAL OXIDE

Empirical Formula:

V⁵⁺O(SO₄)·6(H₂O)

IMA Status:

Approved IMA 1982

Locality:

Minasragra, Peru. Link to MinDat.org Location Data.

Name Origin:

Named for Henry Morton Stanley (1841-1904), British journalist and explorer ("Dr. Livinston I presume?")

Stanleyite Image

Images:

Stanleyite Patronite

Comments: Blue crystalline stanleyite on dark patronite.
Location: Minas Ragra, Junin, Peru. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Stanleyite Crystallography

Axial Ratios:

a:b:c =1.2481:1:1.5365

Cell Dimensions:

a = 12.12, b = 9.71, c = 14.92, Z = 8; V = 1,755.86 Den(Calc)= 2.05

Crystal System:

OrthorhombicSpace Group: Unk

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

By Intensity(I/I_o): 4.2(1), 4.98(0.9), 4.69(0.8),

Physical Properties of Stanleyite

Cleavage:

None

Color:

Blue, Deep blue.

Density:

1.95

Habit:

Crystalline - Fine - Occurs as well-formed fine sized crystals.

Habit:

Efflorescences - Crystals covering matrix, generally produced from transpiro-evaporation.

Hardness:

1-1.5 - Talc or a little harder

Luminescence:

Non-fluorescent.

Streak:

white

Optical Properties of Stanleyite

Gladstone-Dale:

CI meas= 0.118 (Poor) - where the CI = (1-KPDmeas/KC)
CI calc= 0.161 (Poor) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2532,KPDmeas= 0.2662,KC= 0.3019

Optical Data:

Biaxial (+), a=1.505, b=1.519, g=1.533, bire=0.0280, 2V(Calc)=88, 2V(Meas)=large.

Calculated Properties of Stanleyite

Electron Density:

r_electron=2.00 gm/cc
note: r_Stanleyite=1.95 gm/cc.

Fermion Index

Fermion Index = 0.00167
Boson Index = 0.99833

Photoelectric:

PE_Stanleyite= 4.21 barns/electron
U=PE_Stanleyite x r_electron= 8.41 barns/cc.

Radioactivity:

GRapi = 0 (Gamma Ray American Petroleum Institute Units)

Stanleyite is Not Radioactive

Stanleyite Classification

Dana Class:

29.6.13.1 (29)Hydrated Acid and Sulfates

(29.6)where A XO4 · x(H2O)

(29.6.13)Minasragrite Group (Orthorhombic)

29.6.13.1 Stanleyite (VO)SO4·6(H2O) Unk Ortho

29.6.13.2 Orthominasragrite! VO(SO4)·5(H2O) P mn2₁ mm2

Strunz Class:

VI/D.05-20 VI - Sulfates,Chromates,Molybdates and Tungstates

VI/D - Water-bearing sulfates with unfamiliar anions. cations of medium size

VI/D.05 - Minasragrite - Stanleyite series

VI/D.05-03 Bobjonesite! VO(SO4)(H2O)3 P 2₁/m 2/m

VI/D.05-05 Orthominasragrite! VO(SO4)·5(H2O) P mn2₁ mm2

VI/D.05-06 Anorthominasragrite! VO(SO4)(H2O)5 P1 1

VI/D.05-10 Minasragrite VO(SO4)·5(H2O) P 2₁/a 2/m

VI/D.05-20 Stanleyite (VO)SO4·6(H2O) Unk Ortho

Other Stanleyite Information

References:

NAME( Dana8) PHYS. PROP.(Dana8) OPTIC PROP.(Enc. of Minerals,2nd ed.,1990)

See Also:

Links to other databases for Stanleyite :
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 -École des Mines de Paris

Search for Stanleyite using:

[ALTAVISTA] [AOL] [About.com] [All-The-Web] [HotBot] [Ixquick] [LookSmart] [MAMMA] [MSN.COM] [Netscape] [Teoma] [Wikipedia] [YAHOO]

Visit our Advertisers for Stanleyite :
AA Mineral Specimens
B and L Minerals
Dan Weinrich Fine Minerals
Dan Weinrich Auctions
e-Rocks Auctions
Excalibur Minerals
Exceptional Minerals
Fabre Minerals
Greenside Minerals
John Betts Fine Minerals
Masons Minerals
Minernet.it
Mineral News
Mineral of the Month Club
MineralsWeb Fine Minerals
Rockshop.cz Kalat Fine Minerals
T G Fine Minerals
Wrights Rock Shop

Translate Stanleyite Mineral Data :

Ask about Stanleyite here :
Ask-A-Mineralogist from the Mineralogical Society of America
Mindat.org's Discussion Groups
Original Rockhounds Discussion Group
Rockhounds Discussion Group on Yahoo Groups
Mineral Discussion Forum from Fabre Minerals - also available in Español

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

Stanleyite

(V++++O)SO4·6(H2O)
Dana No: 29.6.13.1 Strunz No: VI/D.05-20
Locality:

Notes: