Yukonite Mineral Data

Yukonite Mineral Data +

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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)

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.

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:

r_electron=2.72 gm/cc
note: r_Yukonite=2.80 gm/cc.

Fermion Index

Fermion Index = 0.00508
Boson Index = 0.99492

Photoelectric:

PE_Yukonite= 24.41 barns/electron
U=PE_Yukonite x r_electron= 66.48 barns/cc.

Radioactivity:

GRapi = 0 (Gamma Ray American Petroleum Institute Units)

Yukonite is Not Radioactive

Yukonite Classification

Dana Class:

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

(42.8)where (AB)7 (XO4)4 Zq · x(H2O)

(42.8.6)Dana Group

42.8.6.1 Yukonite Ca7Fe11(AsO4)9O10·24.3(H2O) None

Strunz Class:

VII/D.48-40 VII - Phosphates, Arsenates and Vanadates

VII/D - Water-bearing phosphates with unfamiliar anions, cations of very big and medium size: Al, Mg and Ca, Na, K

VII/D.48 - Gutsevichite - Yukonite series

VII/D.48-10 Gutsevichite? Al3(PO4)2(OH)3·8(H2O) Unk Cubic

VII/D.48-15 Santabarbaraite! Fe3(PO4)2(OH)3·5(H2O) None

VII/D.48-20 Ferrisymplesite Fe3(AsO4)2(OH)3·5(H2O) None

VII/D.48-40 Yukonite Ca7Fe11(AsO4)9O10·24.3(H2O) None

Other Yukonite Information

References:

NAME( Dana8) PHYS. PROP.(Dana)

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

Yukonite

Ca7Fe+++11(AsO4)9O10·24.3(H2O)
Dana No: 42.8.6.1 Strunz No: VII/D.48-40
Locality:

Notes: