Fuloppite Mineral Data

[Newest Minerals] [Minerals for Sale] [Educational Articles] [About Us] [Image Gallery]
John Betts - Fine Minerals
Classic minerals, out-of-print books & magazines, plus informative articles for collectors

General Fuloppite Information

Chemical Formula:

Pb3Sb8S15

Composition:

Molecular Weight = 2,076.59 gm

Antimony 46.90 % Sb

Lead 29.93 % Pb

Sulfur 23.16 % S

______

100.00 %

Empirical Formula:

Pb₃Sb₈S₁₅

Environment:

Of hydrothermal origin.

IMA Status:

Valid Species (Pre-IMA) 1929

Locality:

Baia Mare, Satul-Mare, Rumania. Link to MinDat.org Location Data.

Name Origin:

For Dr. Bela Fulopp.

Name Pronunciation:

Fuloppite + Pronunciation

Fuloppite Image

Images:

Fuloppite

Comments: Gray crystals of fülöppite on quartz.
Location: Neue Hoffnung Gottes Mine, Bräunsdorf, Freiberg District, Erzgebirge, Saxony, Germany. Scale: Picture size 3 mm.
© Thomas Witzke / Abraxas-Verlag

Fuloppite Crystallography

Axial Ratios:

a:b:c =1.4456:1:1.1454

Cell Dimensions:

a = 16.9, b = 11.69, c = 13.39, Z = 4; beta = 94.72° V = 2,636.37 Den(Calc)= 5.23

Crystal System:

Monoclinic - PrismaticH-M Symbol (2/m) Space Group: C 2/c

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

By Intensity(I/I_o): 3.87(1), 3.22(0.7), 2.96(0.4),

Forms:

Mouse
Dbl Clk - Start-Stop Rotation
RMB - Cycle Display Modes
Drag1 - Manipulate Crystal
Drag2 - Resize
Keyboard
S - Stereo
I - Indicies
<space> - Start-Stop Rotation
F - Fit to Screen
M - Menu
Help on Above

Forms: ( 1 1 4) ( 1 1 2) ( 1 1 4) ( 1 1 2) ( 1 0 0) ( 0 0 1)

Warning: this large pop-up is very compute intensive and may not work well with some computers.

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

Swinnea J S , Tenorio A J , Steinfink H , American Mineralogist , 70 (1985) p.1056-1058, Sb10S15, a Pb-free analogue of fueloeppite, Pb3Sb8S15

View Additional jPOWD Structure files for Fuloppite
[1]

Physical Properties of Fuloppite

Color:

Gray, Bronze yellow, Steel blue.

Density:

5.22

Diaphaneity:

Opaque

Fracture:

Brittle - Uneven - Very brittle fracture producing uneven fragments.

Habit:

Prismatic - Crystals Shaped like Slender Prisms (e.g. tourmaline).

Hardness:

2-2.5 - Gypsum-Finger Nail

Luster:

Metallic

Streak:

reddish gray

Optical Properties of Fuloppite

RL Anisotrophism:

Moderate in blue-green to red-brown.

RL Color:

Bronzy white.

Reflectivity

**Standardized Intensity (100%) Reflection Spectra of Fuloppite in Air**
λ	R₁	R₂	∑ R₁(λ)	∑ R₂(λ)
400 nm	33.70	42.60
420 nm	33.60	42.20
440 nm	33.50	41.80
460 nm	33.10	41.40
480 nm	32.50	40.80
500 nm	32.20	40.40
520 nm	32.00	40.20
540 nm	31.90	40.10
560 nm	31.70	40.00
580 nm	31.20	39.60
600 nm	30.50	38.80
620 nm	29.50	37.70
640 nm	28.40	36.40
660 nm	27.60	35.10
680 nm	26.90	34.30
700 nm	26.50	33.80

**Calculated Relative Intensity Colors of Fuloppite in Air**
Relative Intensity	0%	40%	80%	100%	120%	160%	200%	240%	280%	300%
R₁
R₂

Calculated Properties of Fuloppite

Electron Density:

Bulk Density (Electron Density)=4.50 gm/cc
note: Specific Gravity of Fuloppite =5.23 gm/cc.

Fermion Index:

Fermion Index = 0.06
Boson Index = 0.94

Photoelectric:

PE_Fuloppite= 695.26 barns/electron
U=PE_Fuloppite x rElectron Density=3,130.88 barns/cc.

Radioactivity:

GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Fuloppite is Not Radioactive

Fuloppite Classification

Dana Class:

03.06.20.01 (03)Sulfides - Sulfosalts

(03.06)where 2 < z/y < 2.49 - (A+)i (A++)j [By Cz], A=metals, B=semi-metals, C=non-metals

(03.06.20)Fuloppite Group (Monoclinc: C2/c containing Pb, Sb)

03.06.20.01 Fuloppite Pb3Sb8S15 C 2/c 2/m

03.06.20.02 Plagionite Pb5Sb8S17 C 2/c 2/m

03.06.20.03 Heteromorphite Pb7Sb8S19 C 2/c 2/m

03.06.20.04 Semseyite Pb9Sb8S21 C 2/c 2/m

03.06.20.05 Rayite (Ag,Tl)2Pb8Sb8S21 C 2/c 2/m

Strunz Class:

02.HC.10a 02 - SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulf

02.H - Sulfosalts of SnS Archetype

02.HC -With only Pb

02.HC.10a Fuloppite Pb3Sb8S15 C 2/c 2/m

Other Fuloppite Information

References:

NAME( Ford32) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(AntBidBlaNic1)

See Also:

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

Search for Fuloppite using:

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

Visit our Advertisers for Fuloppite :

AA Mineral Specimens

B & L Fine Minerals

Crystalarium.com

Dan Weinrich Fine Minerals

Dan Weinrich Auctions

Dakota Matrix

Desert Winds Gems and Minerals

John Betts Fine Minerals

Mason's Minerals

Mineral News

Mineral of the Month Club

Wrights Rock Shop

Translate Fuloppite Mineral Data :

Ask about Fuloppite 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 Fuloppite Specimen Label here :

Fuloppite

Pb3Sb8S15
Dana No: 03.06.20.01 Strunz No: 02.HC.10a
Locality:

Notes: