Cannonite Mineral Data

General Cannonite Information

Chemical Formula:

Bi2O(OH)2SO4

Composition:

Molecular Weight = 564.04 gm

Bismuth 74.10 % Bi 82.61 % Bi₂O₃

Hydrogen 0.36 % H 3.19 % H₂O

Sulfur 5.69 % S 14.19 % SO₃

Oxygen 19.86 % O

______ ______

100.00 % 100.00 % = TOTAL OXIDE

Empirical Formula:

Bi₂O(OH)₂(SO₄)

Environment:

Associated with quartz gangue

IMA Status:

Approved IMA 1992

Locality:

Tunnel Extension mine, Ohio mining district, Piute County, Utah, USA. Link to MinDat.org Location Data.

Name Origin:

Named for B.B. Cannon, who first recognized the mineral.

Synonym:

ICSD 35188

IMA1992-002

PDF 45-1439

Cannonite Image

Images:

Cannonite Bismuthinite

Comments: Opaque white crystal tufts of cannonite on quartz crystals with dark, metallic bismuthinite.
Location: Marysvale, Piute County, Utah, USA. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Cannonite Crystallography

Axial Ratios:

a:b:c =0.5563:1:0.4108

Cell Dimensions:

a = 7.7, b = 13.839, c = 5.686, Z = 4; beta = 109.11° V = 572.51 Den(Calc)= 6.54

Crystal System:

Monoclinic - Prismatic H-M Symbol (2/m) Space Group: P 2₁/c

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

By Intensity(I/I_o): 3.206(1), 2.924(0.7), 3.644(0.6),

Physical Properties of Cannonite

Cleavage:

None

Color:

Colorless.

Density:

6.515

Diaphaneity:

Transparent

Fracture:

Brittle - Conchoidal - Very brittle fracture producing small, conchoidal fragments.

Hardness:

4 - Fluorite

Luster:

Adamantine

Streak:

white

Optical Properties of Cannonite

Optical Data:

NCalc= 2.06 - from Gladstone-Dale relationship (KC = 0.1624) where Ncalc=Dcalc*KC+1
NCalc= 2.06 - from Gladstone-Dale relationship (KC = 0.1624) where Ncalc=Dmeas*KC+1

Calculated Properties of Cannonite

Electron Density:

Bulk Density (Electron Density)=5.57 gm/cc
note: Specific Gravity of Cannonite =6.54 gm/cc.

Fermion Index:

Fermion Index = 0.0005229667
Boson Index = 0.9994770333

Photoelectric:

PE_Cannonite=1,401.72 barns/electron
U=PE_Cannonite x rElectron Density=7,801.39 barns/cc.

Radioactivity:

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

Cannonite Classification

Dana Class:

30.02.09.01 (30)Anhydrous Sulfates Containing Hydroxyl or Halogen

(30.02)where (A B)2 XO4 Zq

(30.02.09)Dana Group

30.02.09.01 Cannonite Bi2O(OH)2SO4 P 2₁/c 2/m

Strunz Class:

07.BD.35 07 - SULFATES (SELENATES, TELLURATES)

07.B - Sulfates (selenates, etc.) with Additional Anions, without H2O

07.BD -With only large cations

07.BD.35 Cannonite Bi2O(OH)2SO4 P 2₁/c 2/m

Other Cannonite Information

References:

PHYS. PROP.(37th List of New Min.,Min. Mag.,1996)

See Also:

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

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

Cannonite

Bi2O(OH)2SO4
Dana No: 30.02.09.01 Strunz No: 07.BD.35
Locality:

Notes:

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