Mineralogy Database

Delrioite Mineral Data

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General Delrioite Information

Help on Chemical  Formula: Chemical Formula: CaSrV2O6(OH)2•3(H2O)
Help on Composition: Composition: Molecular Weight = 413.64 gm
   Strontium  21.18 %  Sr   25.05 % SrO
   Calcium     9.69 %  Ca   13.56 % CaO
   Vanadium   24.63 %  V    43.97 % V2O5
   Hydrogen    1.95 %  H    17.42 % H2O
   Oxygen     42.55 %  O
             ______        ______ 
             100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: CaSrV5+2O6(OH)2•3(H2O)
Help on Environment: Environment: Coatings on sandstone.
Help on IMA Status: IMA Status: Approved IMA 1959
Help on Locality: Locality: Jo Dandy mine, Montrose County, Colorado, USA. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for Andres M. del Rio (1764-1849), Mexican mineralogist, who discovered vanadium.
Help on Name Pronunciation: Name Pronunciation: Delrioite + Pronunciation Say DELRIOITE

Delrioite Image

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  Metadelrioite   Delrioite

Comments: Yellow metadelrioite and delrioite, with orange rossite/metarossite on a sandstone matrix. See inset image.
Location: Jo Dandy Mine, Montrose CO., USA. Scale: 6 1/4" x 5 1/2".
© Chris Wright / Wrights Rock Shop

Delrioite Crystallography

Help on Axial Ratios: Axial Ratios: a:b:c =2.4247:1:2.068
Help on Cell Dimensions: Cell Dimensions: a = 17.17, b = 7.081, c = 14.644, Z = 8; beta = 102.483° V = 1,738.34 Den(Calc)= 3.16
Help on Crystal System: Crystal System: Monoclinic - Prismatic H-M Symbol (2/m) Space Group: I/a or I2/a
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 6.525(1), 3.539(0.8), 4.387(0.6),

Physical Properties of Delrioite

Help on Color: Color: Yellow brown, Light yellow green, Dark green.
Help on Density: Density: 3.1
Help on Diaphaneity: Diaphaneity: Translucent
Help on Habit: Habit: Acicular - Occurs as needle-like crystals.
Help on Habit: Habit: Aggregates - Made of numerous individual crystals or clusters.
Help on Habit: Habit: Radial - Crystals radiate from a center without producing stellar forms (e.g. stibnite)
Help on Hardness: Hardness: 2 - Gypsum
Help on Luster: Luster: Vitreous - Pearly
Help on Streak: Streak: pale yellow green

Optical Properties of Delrioite

Help on Gladstone-Dale: Gladstone-Dale: CI meas= 0.024 (Excellent) - where the CI = (1-KPDmeas/KC)
CI calc= 0.042 (Good) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2619,KPDmeas= 0.267,KC= 0.2735
Ncalc = 1.85 - 1.86
Help on Optical Data: Optical Data: Biaxial (-), a=1.783, b=1.834, g=1.866, bire=0.0830
Help on Pleochroism (x): Pleochroism (x): colorless.
Help on Pleochroism (y): Pleochroism (y): pale yellow.
Help on Pleochroism (z): Pleochroism (z): yellow.

Calculated Properties of Delrioite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=3.00 gm/cc
note: Specific Gravity of Delrioite =3.10 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.01
Boson Index = 0.99
Help on Photoelectric: Photoelectric: PEDelrioite = 29.11 barns/electron
U=PEDelrioite x rElectron Density= 87.27 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Delrioite is Not Radioactive

Delrioite Classification

Help on  Dana Class: Dana Class: (47)Vanadium Oxysalts
  (47.01)(Normal VO3)
  (47.01.02)Delrioite Group Delrioite CaSrV2O6(OH)2•3(H2O) I/a or I2/a 2/m Metadelrioite CaSrV2O6(OH)2•(H2O) P1 1
Help on  Strunz Class: Strunz Class: 04.HG.35 04 - OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodate
  04.H - V[5,6] Vanadates
  04.HG -Unclassified V oxides
04.HG.35 Delrioite CaSrV2O6(OH)2•3(H2O) I/a or I2/a 2/m

Other Delrioite Information

Help on References: References: NAME( Dana8) PHYS. PROP.(Dana8) OPTIC PROP.(Dana8)
Help on See Also: See Also: Links to other databases for Delrioite :
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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Dana No: Strunz No: 04.HG.35





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