Burnsite Mineral Data (original) (raw)

General Burnsite Information

Help on Chemical Formula: Chemical Formula:

KCdCu7O2(SeO3)2Cl9

Help on Composition: Composition:

Molecular Weight = 1,200.93 gm

Potassium 3.52 % K 4.24 % K2O

Cadmium 9.08 % Cd 10.37 % CdO

Copper 36.93 % Cu 41.58 % Cu2O

Selenium 14.00 % Se 19.68 % SeO2

Chlorine 25.18 % Cl 25.18 % Cl

- % Cl -5.68 % -O=Cl2

Oxygen 11.28 % O

______ ______

100.00 % 95.37 % = TOTAL OXIDE

Help on Empirical Formula: Empirical Formula:

K1.08Cd0.97Cu6.98O2.08(SeO3)2.13Cl8.53

Help on Environment: Environment:

Fumarole deposits. Similarity to ilinskite; structure

Help on IMA Status: IMA Status:

Approved IMA 2002 (Dana # Added)

Help on Locality: Locality:

North Breach of the great fissure eruption, Tolbachik volcano, Kamchatka, Russia. Link to MinDat.org Location Data.

Help on Name Origin: Name Origin:

Named for Peter C. Burns (1966-), Canadian-born mineralogist and crystallographer.

Help on Synonym: Synonym:

IMA2000-050

Burnsite Image

Click Here for Larger Burnsite Image in a New Browser Window Images:

Click Here for Larger Burnsite Image Burnsite Cotunnite Comments: Images of burnsite grains (dark) in intimate intergrowth with cotunnite (light). Images obtained by scanning electron microscopy. Location: North Breach of the great fissure Tolbachik volcano eruption (1975-1976), Kamchatka Peninsula, Russia.Scale: Scale bar: 20 µ-m. © Canadian Mineralogist

Burnsite Crystallography

Help on Axial Ratios: Axial Ratios:

a:c = 1:1.76766

Help on Cell Dimensions: Cell Dimensions:

a = 8.7805, c = 15.521, Z = 2; V = 1,036.31 Den(Calc)= 3.85

Help on Crystal System: Crystal System:

Hexagonal - Dihexagonal DipyramidalH-M Symbol (6/m 2/m 2/m) Space Group: P 63/mmc

Help on X Ray Diffraction: X Ray Diffraction:

By Intensity(I/Io): 7.779(1)(002), 3.814(0.8)(200), 4.391(0.8)(110),3.066(0.7)(203), 2.501(0.6)(213), 2.19(0.5)(220), 2.582(0.5)(006), 6.823(0.5)(101), 1.919(0.4)(216),

Click Here for Large Burnsite Structure Window 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

| | Burns P C , Krivovichev S V , Filatov S K , The Canadian Mineralogist , 40 (2002) p.1587-1595, New Cu coordination polyhedra in the crystal structure of burnsite,, KCdCu7O2(SeO3)2Cl9 | | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |

Physical Properties of Burnsite

Help on Cleavage: Cleavage:

{001} Good

Help on Color: Color:

Dark red.

Help on Diaphaneity: Diaphaneity:

Opaque to translucent

Help on Fracture: Fracture:

Brittle - Uneven - Very brittle fracture producing uneven fragments.

Help on Habit: Habit:

Anhedral Grains - Granular minerals without the expression of crystal shapes

Help on Habit: Habit:

Microscopic Crystals - Crystals visible only with microscopes.

Help on Hardness: Hardness:

1-1.5 - Talc or a little harder

Help on Luster: Luster:

Vitreous - Metallic

Help on Streak: Streak:

red

Optical Properties of Burnsite

Help on Gladstone-Dale: Gladstone-Dale:

CI calc= -0.004 (Superior) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2379,KC= 0.237
Ncalc = 1.91

Help on Optical Data: Optical Data:

Uniaxial (-), e=1.912, w=1.92, bire=0.0080.

Help on RL Bireflectance: RL Bireflectance:

Weak.

Calculated Properties of Burnsite

Help on Electron Density: Electron Density:

Bulk Density (Electron Density)=3.56 gm/cc
note: Specific Gravity of Burnsite =3.85 gm/cc.

Help on Fermion Index: Fermion Index:

Fermion Index = 0.03
Boson Index = 0.97

Help on Photoelectric: Photoelectric:

PEBurnsite = 53.29 barns/electron
U=PEBurnsite x relectron= 189.51 barns/cc.

Help on Radioactivity: Radioactivity:

GRapi = 46.85 (Gamma Ray American Petroleum Institute Units)
Concentration of Burnsite per GRapi unit = 2.13 (%)

Estimated Radioactivity from Burnsite - barely detectable

Burnsite Classification

Help on Dana Class: Dana Class:

33.03.06.01 (33)Selenates and Tellurates

(33.03)with other anion groups

(33.03.06)Dana Group

33.03.06.01 Burnsite! KCdCu7O2(SeO3)2Cl9 P 63/mmc 6/m 2/m 2/m

Help on Strunz Class: Strunz Class:

04.JG.35 04 - OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodate

04.J - Arsenites, Antimonites, Bismuthites, Sulfites,

04.JG -Selenites with additional anions, without H2O

04.JG.35 Burnsite! KCdCu7O2(SeO3)2Cl9 P 63/mmc 6/m 2/m 2/m

Other Burnsite Information

Help on References: References:

NAME( AmMin, 88:1175) PHYS. PROP.(AmMin, 88:1175) OPTIC PROP.(AmMin, 88:1175)

Help on See Also: See Also:

Links to other databases for Burnsite :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - GeoScienceWorld
4 - Google Images
5 - Google Scholar
6 - Handbook of Mineralogy (MinSocAm)
7 - Handbook of Mineralogy (UofA)
8 - MinDAT
9 - Mineralienatlas (Deutsch)
10 - Online Mineral Museum
11 - QUT Mineral Atlas
12 - Ruff.Info

Search for Burnsite using:

[AOL] [Bing] [Dog Pile] [GeoScienceWorld] [HotBot] [Ixquick] [Lycos] [MAMMA] [Scirus] [Teoma] [WebCrawler] [Wikipedia] [YAHOO]

Visit our Advertisers for Burnsite :

A Bijoux Google Search for Burnsite
Adam's Minerals Google Search for Burnsite
Cape Minerals Google Search for Burnsite
Dakota Matrix Minerals Google Search for Burnsite
Excalibur Mineral Corp. Google Search for Burnsite
Exceptional Minerals Google Search for Burnsite
John Betts Fine Minerals Search for Burnsite
McDougall Minerals Google Search for Burnsite
Mineral News Website Link
Rock and Mineral Shows Google Search for Burnsite
Weinrich Minerals, Inc. Google Search for Burnsite

Ask about Burnsite 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 Espa�ol

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

Burnsite

KCdCu7O2(SeO3)2Cl9
Dana No: 33.03.06.01 Strunz No: 04.JG.35
Locality:

Notes: