Pintadoite Mineral Data

General Pintadoite Information

Chemical Formula:

Ca2V2O7•9(H2O)

Composition:

Molecular Weight = 456.17 gm

Calcium 17.57 % Ca 24.59 % CaO

Vanadium 22.33 % V 39.87 % V₂O₅

Hydrogen 3.98 % H 35.54 % H₂O

Oxygen 56.12 % O

______ ______

100.00 % 100.00 % = TOTAL OXIDE

Empirical Formula:

Ca₂V⁵⁺₂O₇•9(H₂O)

Environment:

Thin coatings on sandstone. An inadequately characterized species.

IMA Status:

Valid Species (Pre-IMA) 1914

Locality:

Canyon Pintado, San Juan Co., New Mexico, USA. Link to MinDat.org Location Data.

Name Origin:

Named after its locality.

Name Pronunciation:

Pintadoite + Pronunciation

Pintadoite Image

Images:

Pintadoite

Comments: Dark green to lighter green pintadoite coatings on sandstone.
Location: Deremo-Snyder Mine, San Miguel County, Colorado, USA. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Pintadoite Crystallography

Crystal System:

Tetragonal Space Group: Tetra ?

Physical Properties of Pintadoite

Color:

Light green, Dark green.

Habit:

Efflorescences - Crystals covering matrix, generally produced from transpiro-evaporation.

Luminescence:

Non-fluorescent.

Streak:

yellow green

Optical Properties of Pintadoite

Dichroism (e):

yellowish green.

Dichroism (w):

yellowish green.

Optical Data:

Uniaxial (?).

Calculated Properties of Pintadoite

Fermion Index:

Fermion Index = 0.0010709
Boson Index = 0.9989291

Photoelectric:

PE_Pintadoite= 6.28 barns/electron
U=PE_Pintadoite x rElectron Density= . barns/cc.

Radioactivity:

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

Pintadoite Classification

Dana Class:

47.04.03.01 (47)Vanadium Oxysalts

(47.04)(Hydrated Containing V++++ and V+++++)

(47.04.03)Dana Group

47.04.03.01 Pintadoite Ca2V2O7•9(H2O) Tetra ? Tetra

Strunz Class:

08.FC.15 08 - PHOSPHATES, ARSENATES, VANADATES

08.F - Polyphosphates, Polyarsenates, [4]-Polyvanadates

08.FC -Polyphosphates, etc., with H2O only

08.FC.15 Pintadoite Ca2V2O7•9(H2O) Tetra ? Tetra

Other Pintadoite Information

References:

NAME( Dana8) PHYS. PROP.(Dana8) OPTIC PROP.(Dana8)

See Also:

Links to other databases for Pintadoite :
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 Pintadoite Specimen Label here :

Pintadoite

Ca2V2O7•9(H2O)
Dana No: 47.04.03.01 Strunz No: 08.FC.15
Locality:

Notes: