Quick Links : The Mindat Manual The Rock H. Currier Digital Library Mindat Newsletter [Free Download]

Home Page About Mindat The Mindat Manual History of Mindat Copyright Status Who We Are Contact Us Advertise on Mindat

Donate to Mindat Corporate Sponsorship Sponsor a Page Sponsored Pages Mindat Advertisers Advertise on Mindat

Learning Center What is a mineral?The most common minerals on earth Information for Educators Mindat Articles The Elements The Rock H. Currier Digital Library Geologic Time Explore Fossils

Minerals by Properties Minerals by Chemistry Mineral Visual Explorer Advanced Locality Search Random Mineral Random Locality Search by minID Localities Near Me Search Articles Search Glossary More Search Options

The Mindat Manual Add a New Photo Rate Photos Locality Edit Report Coordinate Completion Report Add Glossary Item

Mining Companies Statistics Users Mineral Museums Clubs & Organizations Mineral Shows & Events The Mindat Directory Device Settings The Mineral Quiz Time Machine

Photo Search Photo Galleries Search by Color Photo Colour Explorer New Photos Today New Photos Yesterday Members' Photo Galleries Past Photo of the Day Gallery Photography

Phosphovanadylite-Ca

A valid IMA mineral species

This page is currently not sponsored. Click here to sponsor this page.

Photos of Phosphovanadylite-Ca (17)Discuss Phosphovanadylite-Ca

Phosphovanadylite-Ca Gallery Search Photos of Phosphovanadylite-Ca

Edit Phosphovanadylite-Ca Add Synonym Edit CIF structures Clear Cache

Phosphovanadylite-Ca, etc.

South Rasmussen Ridge Phosphate Mine, Soda Springs Area, Caribou County, Idaho, USA

Phosphovanadylite-Ca, etc.

South Rasmussen Ridge Phosphate Mine, Soda Springs Area, Caribou County, Idaho, USA

Phosphovanadylite-Ca

South Rasmussen Ridge Phosphate Mine, Soda Springs Area, Caribou County, Idaho, USA

Phosphovanadylite-Ca, etc.

South Rasmussen Ridge Phosphate Mine, Soda Springs Area, Caribou County, Idaho, USA

Phosphovanadylite-Ca, etc.

South Rasmussen Ridge Phosphate Mine, Soda Springs Area, Caribou County, Idaho, USA

Phosphovanadylite-Ca

South Rasmussen Ridge Phosphate Mine, Soda Springs Area, Caribou County, Idaho, USA

Phosphovanadylite-Ca, etc.

South Rasmussen Ridge Phosphate Mine, Soda Springs Area, Caribou County, Idaho, USA

Phosphovanadylite-Ca, etc.

South Rasmussen Ridge Phosphate Mine, Soda Springs Area, Caribou County, Idaho, USA

Hide all sections | Show all sections

About Phosphovanadylite-CaHide

Formula:

Ca[V⁴⁺₄P₂O₁₂(OH)₄] · 12H₂O

Colour:

bright greenish blue

Lustre:

Vitreous

Hardness:

Specific Gravity:

2.02

Crystal System:

Isometric

Name:

Ca analog of phosphovanadylite-Ba.

Type Locality:

ⓘ South Rasmussen Ridge Phosphate Mine, Soda Springs Area, Caribou County, Idaho, USA

Ca analogue of phosphovanadylite-Ba.

Unique IdentifiersHide

Mindat ID:

42729

Long-form identifier:

mindat:1:1:42729:4

Similar NamesHide

Phosphovanadylite-Ba

A valid IMA mineral species

Ba[V₄⁴⁺P₂O₈(OH)₈] · 12H2O

IMA Classification of Phosphovanadylite-CaHide

IMA status:

Approved

IMA Formula:

CaV⁴⁺₄P₂O₁₀(OH)₆·12H₂O

Approval year:

2012

Classification of Phosphovanadylite-CaHide

Strunz-mindat (2026):

8.DM.20

8 : PHOSPHATES, ARSENATES, VANADATES
D : Phosphates, etc. with additional anions, with H₂O
M : With large and medium-sized cations, (OH, etc.):RO₄ > 2:1

Dana 8th ed.:

42.13.15.2

42 : HYDRATED PHOSPHATES, ETC.CONTAINING HYDROXYL OR HALOGEN
13 : Miscellaneous

Mineral SymbolsHide

As of 2021 there are now IMA–CNMNC approved mineral symbols (abbreviations) for each mineral species, useful for tables and diagrams.

Symbol	Source	Reference for Standard
Pvd-Ca	IMA–CNMNC	Warr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43

Physical Properties of Phosphovanadylite-CaHide

Lustre:

Vitreous

Colour:

Bright greenish blue

Comment:

On long-term exposure to sunlight, will gradually turn to green and then to black

Streak:

Very pale greenish blue

Hardness:

2 on Mohs scale

Hardness Data:

Estimated

Tenacity:

Brittle

Cleavage:

None Observed

Fracture:

Irregular/Uneven

Density:

2.02(3) g/cm³ (Measured) 2.038 g/cm³ (Calculated)

Optical Data of Phosphovanadylite-CaHide

Type:

Isotropic

RI values:

n = 1.559(2)

Surface Relief:

Low (positive)
Relative to Canada balsam mounting medium (n ≈ 1.537).

This shows the grain boundary and Becke line effect under plane-polarised light, based on the contrast between this mineral's average refractive index and the mounting medium. It does not take into account mineral colouration.

Focus:

In focus

Chemistry of Phosphovanadylite-CaHide

Mindat Formula:

Ca[V⁴⁺₄P₂O₁₂(OH)₄] · 12H₂O

Element Weights:

Element	% weight
O	57.287 %
V	26.057 %
P	7.922 %
Ca	5.125 %
H	3.609 %

Calculated from ideal end-member formula.

Elements listed:

Ca, H, O, P, V - search for minerals with similar chemistry

Crystallography of Phosphovanadylite-CaHide

Crystal System:

Isometric

Class (H-M):

43m - Hextetrahedral

Space Group:

I43m

Setting:

I43m

Cell Parameters:

a = 15.441(11) Å

Unit Cell V:

3,681.51 Å³ (Calculated from Unit Cell)

Twinning:

interpenetration twins on {111}

Crystal StructureHide

Load
Unit Cell | Unit Cell Packed
2x2x2 | 3x3x3 | 4x4x4

View
CIF File Best | x | y | z | a | b | c

Rotation
Stop | Start

Labels
Console Off | On | Grey | Yellow

Data courtesy of the American Mineralogist Crystal Structure Database. Click on an AMCSD ID to view structure

ID	Species	Reference	Link	Year	Locality	Pressure (GPa)	Temp (K)
0019780	Phosphovanadylite-Ca	Kampf A R, Nash B P, Loomis T A (2013) Phosphovanadylite-Ca, Ca[V44+P2O8(OH)8]12H2O, the Ca analogue of phosphovanadylite-Ba* American Mineralogist 98 439-443		2013	South Rasmussen phosphate mine, Soda Springs, Caribou County, Idaho, USA	0	293

CIF Raw Data - click here to close

data_global
_chemical_name_mineral 'Phosphovanadylite-Ca'
loop_
_publ_author_name
'Kampf A R'
'Nash B P'
'Loomis T A'
_journal_name_full 'American Mineralogist'
_journal_volume 98 
_journal_year 2013
_journal_page_first 439
_journal_page_last 443
_publ_section_title
;
 Phosphovanadylite-Ca, Ca[V44+P2O8(OH)8]*12H2O, the Ca analogue of phosphovanadylite-Ba
;
_database_code_amcsd 0019780
_chemical_compound_source 'South Rasmussen phosphate mine, Soda Springs, Caribou County, Idaho, USA'
_chemical_formula_sum '(V5.22 Al.78) P3 O45.32 Ca1.5 H54.64'
_cell_length_a 15.441
_cell_length_b 15.441
_cell_length_c 15.441
_cell_angle_alpha 90
_cell_angle_beta 90
_cell_angle_gamma 90
_cell_volume 3681.512
_exptl_crystal_density_diffrn      2.201
_symmetry_space_group_name_H-M 'I -4 3 m'
loop_
_space_group_symop_operation_xyz
  'x,y,z'
  '1/2+x,1/2+y,1/2+z'
  '-z,x,-y'
  '1/2-z,1/2+x,1/2-y'
  '-y,z,-x'
  '1/2-y,1/2+z,1/2-x'
  '-x,y,-z'
  '1/2-x,1/2+y,1/2-z'
  'x,-z,-y'
  '1/2+x,1/2-z,1/2-y'
  'z,-y,-x'
  '1/2+z,1/2-y,1/2-x'
  'y,-x,-z'
  '1/2+y,1/2-x,1/2-z'
  'x,z,y'
  '1/2+x,1/2+z,1/2+y'
  'z,y,x'
  '1/2+z,1/2+y,1/2+x'
  'y,x,z'
  '1/2+y,1/2+x,1/2+z'
  '-z,-x,y'
  '1/2-z,1/2-x,1/2+y'
  '-y,-z,x'
  '1/2-y,1/2-z,1/2+x'
  '-x,-y,z'
  '1/2-x,1/2-y,1/2+z'
  'z,-x,-y'
  '1/2+z,1/2-x,1/2-y'
  'y,-z,-x'
  '1/2+y,1/2-z,1/2-x'
  'x,-y,-z'
  '1/2+x,1/2-y,1/2-z'
  '-x,z,-y'
  '1/2-x,1/2+z,1/2-y'
  '-z,y,-x'
  '1/2-z,1/2+y,1/2-x'
  '-y,x,-z'
  '1/2-y,1/2+x,1/2-z'
  '-x,-z,y'
  '1/2-x,1/2-z,1/2+y'
  '-z,-y,x'
  '1/2-z,1/2-y,1/2+x'
  '-y,-x,z'
  '1/2-y,1/2-x,1/2+z'
  'z,x,y'
  '1/2+z,1/2+x,1/2+y'
  'y,z,x'
  '1/2+y,1/2+z,1/2+x'
loop_
_atom_site_label
_atom_site_fract_x
_atom_site_fract_y
_atom_site_fract_z
_atom_site_occupancy
_atom_site_U_iso_or_equiv
V   0.42846   0.42846   0.08140   0.87000   0.04260
Al   0.42846   0.42846   0.08140   0.13000   0.04260
P   0.25000   0.50000   0.00000   1.00000   0.04900
O1   0.43570   0.30590   0.05150   1.00000   0.04200
O-H2   0.42140   0.42140   0.18660   1.00000   0.05000
O-H3   0.55610  -0.55610   0.06640   1.00000   0.04300
Ca   0.65900  -0.65900   0.16050   0.25000   0.27200
Wat1   0.65900  -0.65900   0.16050   0.61000   0.27200
Wat2   0.29380   0.29380   0.29380   1.00000   0.19400
Wat3   0.33610   0.45200   0.33610   0.56000   0.13000
Wat4   0.24510   0.49000   0.24510   1.00000   0.22100
Wat5   0.34500   0.54200  -0.54200   0.67000   0.43000
Wat6   0.30900   0.69100  -0.69100   0.54000   0.44000
Wat7   0.29500   0.59600  -0.59600   0.20000   0.15000
loop_
_atom_site_aniso_label
_atom_site_aniso_U_11
_atom_site_aniso_U_22
_atom_site_aniso_U_33
_atom_site_aniso_U_12
_atom_site_aniso_U_13
_atom_site_aniso_U_23
V 0.04100 0.04100 0.04600 0.00700 -0.00050 -0.00050
Al 0.04100 0.04100 0.04600 0.00700 -0.00050 -0.00050
P 0.05100 0.04800 0.04800 0.00000 0.00000 0.00000
O1 0.03500 0.03800 0.05300 -0.00100 0.01600 -0.00300
O-H2 0.04600 0.04600 0.05900 -0.00700 -0.00800 -0.00800
O-H3 0.04400 0.04400 0.04100 0.00500 0.00500 -0.00500
Ca 0.25500 0.25500 0.31000 0.01000 -0.12800 0.12800
Wat1 0.25500 0.25500 0.31000 0.01000 -0.12800 0.12800
Wat2 0.19400 0.19400 0.19400 0.05000 0.05000 0.05000
Wat3 0.11000 0.19000 0.11000 -0.02000 0.06000 -0.02000
Wat4 0.13400 0.40000 0.13400 0.00900 0.00100 0.00900
Wat5 0.15000 0.56000 0.56000 -0.11000 0.11000 0.13000
Wat6 0.44000 0.44000 0.44000 0.21000 -0.21000 0.21000

X-Ray Powder DiffractionHide

Powder Diffraction Data:

d-spacing	Intensity
11.04 Å	(97)
7.788 Å	(100)
4.487 Å	(14)
3.171 Å	(46)
2.749 Å	(32)
2.458 Å	(14)
2.343 Å	(15)
1.830 Å	(16)

Locality:

South Rasmussen Ridge Phosphate Mine, Soda Springs Area, Caribou County, Idaho, USA

Geological EnvironmentHide

Paragenetic Mode(s):

Paragenetic Mode	Earliest Age (Ga)
Stage 7: Great Oxidation Event	<2.4
47a : [Near-surface hydration of prior minerals]
47c : [Carbonates, phosphates, borates, nitrates]
47e : [Vanadates, chromates, manganates]

Type Occurrence of Phosphovanadylite-CaHide

Type Locality:

ⓘ South Rasmussen Ridge Phosphate Mine, Soda Springs Area, Caribou County, Idaho, USA

General Appearance of Type Material:

small cubes, intergrown into crusts.

Place of Conservation of Type Material:

Natural History Museum of Los Angeles County, 900 Exposition Boulevard, Los Angeles, CA 90007, USA, catalogue numbers 63578, 63579, 63580, 63581 and 63582

Geological Setting of Type Material:

phosphorite beds

Associated Minerals at Type Locality:

Fluorapatite	Hydroxylapatite	Pyrite	Quartz	Native Selenium
Sincosite	Sphalerite

Synonyms of Phosphovanadylite-CaHide

IMA2011-101

Other Language Names for Phosphovanadylite-CaHide

Dutch:Phosphovanadyliet-Ca

German:Phosphovanadylit-Ca

Common AssociatesHide

Associations Based on Photo Data:

12 photos of Phosphovanadylite-Ca associated with Sincosite	Ca(V⁴⁺O)₂(PO₄)₂ · 4H₂O
2 photos of Phosphovanadylite-Ca associated with Native Selenium	Se
1 photo of Phosphovanadylite-Ca associated with 'Shale'

Related Minerals - Strunz-mindat Grouping Hide

8.DM.	Tomsquarryite	NaMgAl₃(PO₄)₂(OH)₆ · 8H₂O	Trig. 3m(32/m) : R3m
8.DM.	Elliottite	NaMgAl₃(PO₄)₂F₆ · 9H₂O	Mon. 2/m : B2/m
8.DM.	Betpakdalite-FeFe	[Fe³⁺₂ (H₂O)₁₅(OH)₂Fe³⁺(H₂O)₆][Mo₈As₂Fe³⁺₃O₃₇]	Mon. 2/m : B2/m
8.DM.	Penriceite	[Mg(H₂O)₆][Na(H₂O)₂Al₃(PO₄)₂F₆] · H₂O	Mon. 2/m : P2₁/c
8.DM.	Betpakdalite-CaMg	[Ca₂(H₂O)₁₇Mg(H₂O)₆][Mo₈As₂Fe³⁺₃O₃₆(OH)]	Mon. 2/m : B2/m
8.DM.	Chinnerite	[Mg(H₂O)₆]Na(H₂O)₂Al₃(PO₄)₂F₆	Mon. 2/m : P2/c
8.DM.	Sarrochite	[Ca₄(H₂O)₃₈][Mo₈P₂Fe³⁺₃O₃₇(OH)]	Trig. 3m(32/m) : P3m1
8.DM.05	Esperanzaite	NaCa₂Al₂(AsO₄)₂(OH)F₄ · 2H₂O	Mon. 2/m : P2₁/m
8.DM.05	Morinite	NaCa₂Al₂(PO₄)₂(OH)F₄ · 2H₂O	Mon. 2/m : P2₁/m
8.DM.10	Alexshubnikovite	Ca₂Cu₉(AsO₄)₄(OH)₉Cl(H₂O)₈ · 2H₂O	Mon. 2/m : P2/b
8.DM.10	Tangdanite	Ca₂Cu₉(AsO₄)₄(SO₄)_0.5(OH)₉ · 9H₂O	Mon. 2/m : B2/b
8.DM.10	Tyrolite	Ca₂Cu₉(AsO₄)₄(CO₃)(OH)₈ · 11H₂O	Mon. 2/m
8.DM.15	Melkovite	[Ca₂(H₂O)₁₅Ca(H₂O)₆][Mo₈P₂Fe³⁺₃O₃₆(OH)]	Mon. 2/m : B2/m
8.DM.15	Betpakdalite-NaCa	[Na₂(H₂O)₁₇Ca(H₂O)₆][Mo⁶⁺₈As⁵⁺₂Fe³⁺₃O₃₄(OH)₃]	Mon. 2/m : B2/m
8.DM.15	Betpakdalite-CaCa	[Ca₂(H₂O)₁₇Ca(H₂O)₆][Mo⁶⁺₈As⁵⁺₂Fe³⁺₃O₃₆(OH)]	Mon. 2/m : B2/m
8.DM.20	Phosphovanadylite-Ba	Ba[V⁴⁺₄P₂O₈(OH)₈] · 12H2O	Iso. 43m : I43m
8.DM.25	Yukonite	Ca₃Fe³⁺(AsO₄)₂(OH)₃ · 5H₂O	Orth. mm2
8.DM.30	Uduminelite	Ca₃Al₈(PO₄)₂O₁₂ · 2H₂O
8.DM.35	Aldermanite	[Mg(H₂O)₆][Na(H₂O)₂Al₃(PO₄)₂(OH,F)₆] · H₂O	Mon. 2/m : P2₁/c
8.DM.35	'Azovskite'	Fe³⁺₃(PO₄)(OH)₆ or near
8.DM.35	Delvauxite	CaFe₄(PO₄,SO₄)₂(OH)₈ · 4-6H₂O not confirmed	Amor.
8.DM.40	Santafeite	(Na,Ca,Sr)₁₂(Mn²⁺,Fe³⁺,Al,Mg)₈Mn⁴⁺₈(VO₄)₁₆(OH,O)₂₀ · 8H₂O	Orth. mmm(2/m2/m2/m)
8.DM.55	Tapiaite	Ca₅Al₂(AsO₄)₄(OH)₄ · 12H₂O	Mon. 2/m : P2₁/c
8.DM.60	Alcantarillaite	[Fe³⁺_0.5(H₂O)₄][CaAs³⁺₂(Fe³⁺_2.5W⁶⁺_0.5)(AsO₄)₂O₇]	Orth. mmm(2/m2/m2/m) : Imma

Other InformationHide

Notes:

On long-term (about one year) exposure to sunlight, the mineral gradually turns from greenish blue to green and then black.

Dissolves slowly in cold, concentrated acids (HCl, H2SO4, and HNO3).

Special Storage/
Display Requirements:

Turns color on exposure to sunlight.

Health Risks:

No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.

Internet Links for Phosphovanadylite-CaHide

mindat.org URL:

https://www.mindat.org/min-42729.html
Please feel free to link to this page.

Search Engines:

Look for Phosphovanadylite-Ca on Google

Look for Phosphovanadylite-Ca images on Google

Look for Phosphovanadylite-Ca on Bing

Look for Phosphovanadylite-Ca images on Bing

Look for Phosphovanadylite-Ca on DuckDuckGo

Look for Phosphovanadylite-Ca images on DuckDuckGo

Look for Phosphovanadylite-Ca in the Rock H. Currier Digital Library

External Links:

Look for Phosphovanadylite-Ca on Webmineral

Look for Phosphovanadylite-Ca on Wikipedia

Look for Phosphovanadylite-Ca on Mineralien Atlas

Raman and XRD data at RRUFF project

References and PDF downloads at RRUFF project

American Mineralogist Crystal Structure Database

Handbook of Mineralogy page PDF

Mineral Dealers:

Buy from D. Joyce minerals

References for Phosphovanadylite-CaHide

Reference List:

Williams, P. A., Hatert, F., Pasero, M., Mills, S. J. (2012) New minerals and nomenclature modifications approved in 2012. CNMNC Newsletter No 13. Mineralogical Magazine, 76 (3) 807-817 doi:10.1180/minmag.2012.076.3.26

Kampf, A. R., Nash, B. P., Loomis, T. A. (2013) Phosphovanadylite-Ca, Ca[V4+4P2O8(OH)8]·12H2O, the Ca analogue of phosphovanadylite-Ba. American Mineralogist, 98 (2-3). 439-443 doi:10.2138/am.2013.4322

(2013) Errata. American Mineralogist, 98 (4) 816 doi:10.2138/am.2013.615

(2017) Phosphovanadylite-Ca. Handbook of Mineralogy. Mineralogical Society of America

Localities for Phosphovanadylite-CaHide

Showing 1 localities.

This map shows a selection of localities that have latitude and longitude coordinates recorded. Click on the

symbol to view information about a locality. The

symbol next to localities in the list can be used to jump to that position on the map.

Hide all sections | Show all sections

Locality ListHide

- This locality has map coordinates listed.

- This locality has estimated coordinates. ⓘ - Click for references and further information on this occurrence. ? - Indicates mineral may be doubtful at this locality.

- Good crystals or important locality for species.

- World class for species or very significant. (TL) - Type Locality for a valid mineral species. (FRL) - First Recorded Locality for everything else (eg varieties). ~~Struck out~~ - Mineral was erroneously reported from this locality. Faded * - Never found at this locality but inferred to have existed at some point in the past (e.g. from pseudomorphs).

All localities listed without proper references should be considered as questionable.

USA (TL)

Idaho

Caribou County

Soda Springs Area

ⓘ South Rasmussen Ridge Phosphate Mine (TL)

Williams et al. (2012) +1 other reference

Mindat.org® is an outreach project of the Hudson Institute of Mineralogy, a 501(c)(3) not-for-profit organization. Mindat® and mindat.org® are registered trademarks of the Hudson Institute of Mineralogy.
Copyright © mindat.org and the Hudson Institute of Mineralogy 1993-2026, except where stated. Most political location boundaries are © OpenStreetMap contributors. Mindat.org relies on the contributions of thousands of members and supporters. Founded in 2000 by Jolyon Ralph and Ida Chau.
Content on this site may not be used to train, fine-tune, or otherwise develop artificial intelligence or machine learning models without prior written permission - see our Terms & Conditions.
To cite: Ralph, J., Von Bargen, D., Martynov, P., Zhang, J., Que, X., Prabhu, A., Morrison, S. M., Li, W., Chen, W., & Ma, X. (2025). Mindat.org: The open access mineralogy database to accelerate data-intensive geoscience research. American Mineralogist, 110(6), 833–844. doi:10.2138/am-2024-9486.
Privacy Policy - Terms & Conditions - Contact Us / DMCA issues - Report a bug/vulnerability Current server date and time: September 28, 2026 22:01:56 Page updated: September 23, 2026 13:46:36

Go to top of page

Phosphovanadylite-Ca

About Phosphovanadylite-CaHide

Unique IdentifiersHide

Similar NamesHide

IMA Classification of Phosphovanadylite-CaHide

Classification of Phosphovanadylite-CaHide

Mineral SymbolsHide

Physical Properties of Phosphovanadylite-CaHide

Optical Data of Phosphovanadylite-CaHide

Chemistry of Phosphovanadylite-CaHide

Crystallography of Phosphovanadylite-CaHide

Crystal StructureHide

X-Ray Powder DiffractionHide

Geological EnvironmentHide

Type Occurrence of Phosphovanadylite-CaHide

Synonyms of Phosphovanadylite-CaHide

Other Language Names for Phosphovanadylite-CaHide

Common AssociatesHide

Related Minerals - Strunz-mindat GroupingHide

Other InformationHide

Internet Links for Phosphovanadylite-CaHide

References for Phosphovanadylite-CaHide

Localities for Phosphovanadylite-CaHide

Locality ListHide

Related Minerals - Strunz-mindat Grouping Hide