Yukonite Mineral Data

General Yukonite Information

Chemical Formula:

Ca7Fe+++11(AsO4)9O10•24.3(H2O)

Composition:

Molecular Weight = 2,742.90 gm

Calcium 10.23 % Ca 14.31 % CaO

Iron 22.40 % Fe 32.02 % Fe₂O₃

Arsenic 24.58 % As 37.71 % As₂O₅

Hydrogen 1.79 % H 15.96 % H₂O

Oxygen 41.01 % O

______ ______

100.00 % 100.00 % = TOTAL OXIDE

Empirical Formula:

Ca₇Fe³⁺₁₁(AsO₄)₉O₁₀•24.3(H₂O)

Environment:

Occurring as an alteration of As-rich minerals such as arsenopyrite, k�ttigite and parasymplesite in Ca-rich oxidizing environments.

IMA Status:

Valid Species (Pre-IMA) 1913

Locality:

Tagish Lake, Yukon Territory, Canada. Link to MinDat.org Location Data.

Name Origin:

Named for the locality.

Name Pronunciation:

Yukonite

Yukonite Image

Images:

Yukonite

Comments: dark red brown resinous yukonite on limonite.
Location: Venus Gold-Silver mine, Yukon Territory, Canada. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Yukonite Crystallography

Crystal System:

Amorphous- No Crystals

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

By Intensity(I/I_o): 14.1(1), 2.79(0.6), 3.25(0.57),5.58(0.33),

Physical Properties of Yukonite

Color:

Brownish black, Dark red, Reddish brown.

Density:

2.8

Habit:

Amorphous - No crystalline form or imitative shape.

Hardness:

2-3 - Gypsum-Calcite

Luminescence:

Non-fluorescent.

Luster:

Resinous

Streak:

light brown

Optical Properties of Yukonite

Optical Data:

NCalc= 1.69 - from Gladstone-Dale relationship (KC = 0.2463) where Ncalc=Dmeas*KC+1

Calculated Properties of Yukonite

Electron Density:

Bulk Density (Electron Density)=2.72 gm/cc
note: Specific Gravity of Yukonite =2.80 gm/cc.

Fermion Index:

Fermion Index = 0.0050856697
Boson Index = 0.9949143303

Photoelectric:

PE_Yukonite= 24.41 barns/electron
U=PE_Yukonite x rElectron Density= 66.48 barns/cc.

Radioactivity:

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

Yukonite Classification

Dana Class:

42.08.06.01 (42)Hydrated Phosphates, etc., Containing Hydroxyl or Halogen

(42.08)where (AB)7 (XO4)4 Zq � x(H2O)

(42.08.06)Dana Group

42.08.06.01 Yukonite Ca7Fe11(AsO4)9O10•24.3(H2O) None

Strunz Class:

08.DM.25 08 - PHOSPHATES, ARSENATES, VANADATES

08.D - Phosphates, etc

08.DM -With large and medium-sized cations, (OH, etc.):RO4 > 2:1

08.DM.25 Gutsevichite? Al3(PO4)2(OH)3•8(H2O) Unk Cubic

08.DM.25 Yukonite Ca7Fe11(AsO4)9O10•24.3(H2O) None

Other Yukonite Information

References:

NAME( Dana8) PHYS. PROP.(Dana)

See Also:

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

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

Yukonite

Ca7Fe+++11(AsO4)9O10•24.3(H2O)
Dana No: 42.08.06.01 Strunz No: 08.DM.25
Locality:

Notes:

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