Patronite Mineral Data

Patronite Mineral Data +

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General Patronite Information

Chemical Formula:

VS4

Composition:

Molecular Weight = 179.21 gm

Vanadium 28.43 % V

Sulfur 71.57 % S

______

100.00 %

Empirical Formula:

V⁵⁺S₄

Environment:

A major ore mineral in what was the world's richest vanadium deposit.

IMA Status:

Valid Species (Pre-IMA) 1906

Locality:

Mina Ragra (Minasragra), Junín, Cerro de Pasco, Pasco department, Peru. Link to MinDat.org Location Data.

Name Origin:

Named for Antenor Rizo-Patron, Peruvian engineer, discoverer of the Peruvian occurrence.

Synonym:

ICSD 64770

PDF 19-1408

Patronite Image

Images:

Patronite Minasragrite

Comments: Blue coatings of minasragrite on patronite.
Location: Minas Ragra, near Cerro de Pasco, Junin, Peru. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Images:

Patronite

Comments: Dark brownish black fine grained massive patronite.
Location: Minas Ragra, near Cerro de Pasco, Junin, Peru. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Images:

Patronite Stanleyite

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

Patronite Crystallography

Axial Ratios:

a:b:c =0.6506:1:1.1621

Cell Dimensions:

a = 6.78, b = 10.42, c = 12.11, Z = 8; beta = 100.8° V = 840.39 Den(Calc)= 2.83

Crystal System:

Monoclinic - PrismaticH-M Symbol (2/m) Space Group: I2/a

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

By Intensity(I/I_o): 5.15(1), 5.47(0.6), 3.92(0.5),

Crystal Structure:

Mouse
drag1 - LMB Manipulate Structure
drag2 - RMB Resize/Rotate
Keyboard
S - Stereo Pair on/off
H - Help Screen
I - Data Info
A - Atoms On/Off
P - Polyhedra On/Off
B - Bonds On/Off
Help on Above

Allmann R , Baumann I , Kutoglu A , Rosch H , Hellner E , Naturwissenschaften , 51 (1964) p.263-264, Die kristallstruktur des patronits V(S2)2, Locality: Minasraga, Peru

Physical Properties of Patronite

Cleavage:

[???] Distinct, [???] Distinct

Color:

Lead gray, Greenish black, Black.

Density:

2.82

Diaphaniety:

Opaque

Habit:

Aggregates - Made of numerous individual crystals or clusters.

Habit:

Massive - Uniformly indistinguishable crystals forming large masses.

Hardness:

2 - Gypsum

Luster:

Metallic

Streak:

black

Optical Properties of Patronite

RL Color:

Dark gray.

RL Pleochroism:

Strong.

Reflectivity

**Standardized Intensity (100%) Reflection Spectra of Patronite in Air**
λ	R₁	R₂	∑ R₁(λ)	∑ R₂(λ)
400 nm	20.20	29.90
420 nm	20.00	30.00
440 nm	19.80	30.10
460 nm	19.80	30.80
480 nm	20.00	31.90
500 nm	20.10	32.60
520 nm	20.10	32.90
540 nm	20.00	32.80
560 nm	19.80	32.40
580 nm	19.60	31.40
600 nm	19.10	30.50
620 nm	18.90	29.60
640 nm	18.80	29.60
660 nm	19.00	29.80
680 nm	19.20	30.30
700 nm	19.50	31.00

**Calculated Relative Intensity Colors of Patronite in Air**
Relative Intensity	0%	50%	100%	150%	200%	250%	300%	350%	400%	450%	460%
R₁
R₂

Calculated Properties of Patronite

Electron Density:

r_electron=2.75 gm/cc
note: r_Patronite=2.83 gm/cc.

Fermion Index

Fermion Index = 0.00607
Boson Index = 0.99393

Photoelectric:

PE_Patronite= 9.25 barns/electron
U=PE_Patronite x r_electron= 25.42 barns/cc.

Radioactivity:

GRapi = 0 (Gamma Ray American Petroleum Institute Units)

Patronite is Not Radioactive

Patronite Classification

Dana Class:

2.16.21.1 (2)Sulfides - Including Selenides and Tellurides

(2.16)with miscellaneous formulae

(2.16.21)Dana Group

2.16.21.1 Patronite VS4 I2/a 2/m

Strunz Class:

II/F.01-10 II - Sulfides and sulphosalts

II/F - Sulfides with nonmetallic properties, Arsenic-Sulfides

II/F.01 - Patronite series

II/F.01-10 Patronite VS4 I2/a 2/m

Other Patronite Information

References:

NAME( AntBidBlaNic1) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(AntBidBlaNic1)

See Also:

Links to other databases for Patronite :
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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Patronite

VS4
Dana No: 2.16.21.1 Strunz No: II/F.01-10
Locality:

Notes: