Cetineite Mineral Data

Cetineite Mineral Data

[Register] [Auction Rules] [Current Listing] [About Us] [Site Map]
e-Rocks.com, auction and sales venue for all rock and mineral enthusiasts
Our mission is to provide an online centre for Buyers and Sellers with reliable service and support
Brought to you by Thames Valley Minerals

General Cetineite Information

Chemical Formula:

(K,Na)3+x(Sb2O3)3(Sb2S3)(OH)x·(2.8-x)(H2O)

Composition:

Molecular Weight = 726.98 gm

Potassium 9.68 % K

Sodium 5.06 % Na

Antimony 60.29 % Sb

Hydrogen 0.73 % H

Sulfur 11.91 % S

Oxygen 12.32 % O

______

100.00 %

Empirical Formula:

K_1.8Na_1.6(Sb2O3)_0.9(Sb2S3)_0.9(OH)_0.5·2.4(H₂O)

Environment:

From an antimony deposit in highly silicified evaporites, on ore which has been roasted, then long weathered.

IMA Status:

Approved IMA 1987

Locality:

In the Cetine mine, 20 km southwest of Siena, Tuscany, Italy. Link to MinDat.org Location Data.

Name Origin:

Named for the locality.

Synonym:

ICSD 202637

PDF 40-1458

Cetineite Image

Images:

Cetineite Valentinite

Comments: Orange-reddish acicular crystals of cetineite with white valentinite.
Location: Cetine di Cotorniano mine (Cetine mine), Rosia, Siena, Tuscany, Italy. Scale: Picture size 4 mm.
© Thomas Witzke / Abraxas-Verlag

Cetineite Crystallography

Axial Ratios:

a:c = 1:0.39205

Cell Dimensions:

a = 14.23, c = 5.579, Z = 2; V = 978.36 Den(Calc)= 2.47

Crystal System:

Hexagonal - PyramidalH-M Symbol (6) Space Group: P 6₃

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

By Intensity(I/I_o): 2.916(1), 12.41(0.8), 3(0.74),

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

Sabelli C , Nakai I , Katsura S , American Mineralogist , 73 (1988) p.398-404, Crystal structures of cetineite and its synthetic Na analogue, Na3.6(Sb2O3)3(SbS3)(OH)0.6.2.4(H2O)

View Additional jPOWD Structure files for Cetineite
[1]

Physical Properties of Cetineite

Cleavage:

[1000] Good

Color:

Yellow orange, Orange red.

Diaphaniety:

Transparent to Translucent

Habit:

Acicular - Occurs as needle-like crystals.

Hardness:

3.5 - Copper Penny

Luster:

Resinous

Streak:

orange

Optical Properties of Cetineite

Dichroism (e):

orange.

Dichroism (w):

slightly orange brown.

Optical Data:

Uniaxial (+), w=1.74.

Calculated Properties of Cetineite

Electron Density:

r_electron=2.23 gm/cc
note: r_Cetineite=2.47 gm/cc.

Fermion Index

Fermion Index = 0.00096
Boson Index = 0.99904

Photoelectric:

PE_Cetineite= 197.89 barns/electron
U=PE_Cetineite x r_electron= 442.02 barns/cc.

Radioactivity:

GRapi = 126.30 (Gamma Ray American Petroleum Institute Units)

Estimated Radioactivity from Cetineite - barely detectable

Cetineite Classification

Dana Class:

2.13.3.1 (2)Sulfides - Including Selenides and Tellurides

(2.13)(Oxysulfides)

(2.13.3)Dana Group

2.13.3.1 Cetineite (K,Na)3x(Sb2O3)3(Sb2S3)(OH)x·(2.8-x)(H2O) P 6₃ 6

Strunz Class:

II/F.11-30 II - Sulfides and sulphosalts

II/F - Sulfides with nonmetallic properties, Oxisulfides

II/F.11 - Kermesite - Cetineite series

II/F.11-10 Kermesite Sb2S2O P1 1

II/F.11-20 Sarabauite CaSb10O10S6 C 2/c 2/m

II/F.11-30 Cetineite (K,Na)3x(Sb2O3)3(Sb2S3)(OH)x·(2.8-x)(H2O) P 6₃ 6

Other Cetineite Information

References:

NAME( AntBidBlaNic1) PHYS. PROP.(Am.Min.,Vol.73,p398-404,1988) OPTIC PROP.(AntBidBlaNic1)

See Also:

Links to other databases for Cetineite :
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

Search for Cetineite using:

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

Visit our Advertisers for Cetineite :
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 Cetineite Mineral Data :

Ask about Cetineite 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 Cetineite Specimen Label here :

Cetineite

(K,Na)3+x(Sb2O3)3(Sb2S3)(OH)x·(2.8-x)(H2O)
Dana No: 2.13.3.1 Strunz No: II/F.11-30
Locality:

Notes: