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Burroite

A valid IMA mineral species
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00738610017679790648545.jpg
Burroite, etc.

Burro Mine, San Miguel County, Colorado, USA
00296190017679899257831.jpg
Burroite, etc.

Burro Mine, San Miguel County, Colorado, USA
06146660017683444882486.jpg
Burroite, etc.

Burro Mine, San Miguel County, Colorado, USA
00296190017679899257831.jpg
Burroite, etc.

Burro Mine, San Miguel County, Colorado, USA
03429050017679899256599.jpg
Burroite, etc.

Burro Mine, San Miguel County, Colorado, USA
00296190017679899257831.jpg
Burroite, etc.

Burro Mine, San Miguel County, Colorado, USA
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About BurroiteHide

02106210017272472921728.jpg
Burro Mine Complex view from the south, 20 July 2020

Burro Mine, San Miguel County, Colorado, USA
Formula:
Ca2(NH4)2(V10O28) · 15H2O
Colour:
Orange-yellow
Lustre:
Vitreous
Hardness:
1½ - 2
Specific Gravity:
2.43
Crystal System:
Triclinic
Name:
Named for the Burro mine, Colorado, in which it was found.
Chemically related to wernerbaurite; the two species are the only known natural ammonium calcium vanadates.


Unique IdentifiersHide

Mindat ID:
50785
Long-form identifier:
mindat:1:1:50785:5

Similar NamesHide

BariteA synonym of Baryte
BaueriteSiO2
BerryiteA valid IMA mineral speciesCu3Ag2Pb3Bi7S16
BiraiteA synonym
Biraite-(Ce)A valid IMA mineral speciesCe2Fe2+(Si2O7)(CO3)
Biraite-(La)A valid IMA mineral speciesLa2Fe2+(CO3)(Si2O7)
VurroiteA valid IMA mineral speciesPb20Sn2(Bi,As)22S54Cl6

Classification of BurroiteHide

00669880017683444897551.jpg
The Decavanadate Cluster

The decavanadate cluster found in burroite. The same cluster is known in a number of other secondary vanadium minerals including, for example, pascoite, wernerbaurite, and rakovanite.

IMA Classification of BurroiteHide

IMA status:
Approved
IMA Formula:
(N3-H4)2Ca2[V5+10O28]·15H2O
Approval year:
2016
First published:
2017
Type description reference:
Kampf, Anthony R., Nash, Barbara P., Hughes, John M., Marty, Joe (2017) Burroite, Ca2(NH4)2(V10O28)·15H2O, a new decavanadate mineral from the Burro Mine, San Miguel County, Colorado. The Canadian Mineralogist, 55 (3) 473-481 doi:10.3749/canmin.1700004
Strunz-mindat (2026):
4.HC.25

4 : OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodates)
H : V[5,6] Vanadates
C : [6]-Sorovanadates

Mineral SymbolsHide

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

SymbolSourceReference for Standard
BurrIMA–CNMNCWarr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43

Physical Properties of BurroiteHide

Lustre:
Vitreous
Colour:
Orange-yellow
Streak:
Yellow
Hardness:
1½ - 2 on Mohs scale
Tenacity:
Brittle
Cleavage:
Distinct/Good
on {001}
Fracture:
Irregular/Uneven
Density:
2.43(2) g/cm3 (Measured)    

Chemistry of BurroiteHide

Mindat Formula:
Ca2(NH4)2(V10O28) · 15H2O
Element Weights:
Element% weight
O51.194 %
V37.907 %
Ca5.965 %
H2.850 %
N2.085 %

Calculated from ideal end-member formula.
O
V
Ca
H
N
Elements listed:
Ca, H, N, O, V - search for minerals with similar chemistry

Crystallography of BurroiteHide

Crystal System:
Triclinic
Class (H-M):
1 - Pinacoidal
Space Group:
P1
Cell Parameters:
a = 8.779(2) Å, b = 10.311(2) Å, c = 12.060(2) Å
α = 96.740(4)°, β = 107.388(5)°, γ = 114.439°
Ratio:
a:b:c = 0.851 : 1 : 1.17
Unit Cell V:
911.23 ų (Calculated from Unit Cell)
Morphology:
As somewhat flattened prisms up to 2mm large

Crystal StructureHide

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IDSpeciesReferenceLinkYearLocalityPressure (GPa)Temp (K)
M12005BurroiteKampf, Anthony R., Nash, Barbara P., Hughes, John M., Marty, Joe (2017) Burroite, Ca2(NH4)2(V10O28)·15H2O, a new decavanadate mineral from the Burro Mine, San Miguel County, Colorado. The Canadian Mineralogist, 55 (3) 473-481 doi:10.3749/canmin.17000042017Burro Mine, Colorado, USA0293
CIF Raw Data - click here to close

X-Ray Powder DiffractionHide

Geological EnvironmentHide

Paragenetic Mode(s):
Paragenetic ModeEarliest Age (Ga)
Stage 10a: Neoproterozoic oxygenation/terrestrial biosphere<0.6
53 : Other minerals with taphonomic origins<0.4
Stage 10b: Anthropogenic minerals<10 Ka
55 : Anthropogenic mine minerals

Type Occurrence of BurroiteHide

Type Locality:
ⓘ Burro Mine, San Miguel County, Colorado, USA
General Appearance of Type Material:
As orange-yellow, somewhat flattened prisms up to 2 mm in length.
Place of Conservation of Type Material:
Mineralogical collections of the Natural History Museum of Los Angeles County, Los Angeles, California, USA, catalogue numbers 66299 (holotype) and 66300 (cotype)
Geological Setting of Type Material:
On a montroseite- and corvusite-bearing sandstone
Associated Minerals at Type Locality:
CorvusiteMontroseite
Reference:
Kampf, Anthony R., Nash, Barbara P., Hughes, John M., Marty, Joe (2017) Burroite, Ca2(NH4)2(V10O28)·15H2O, a new decavanadate mineral from the Burro Mine, San Miguel County, Colorado. The Canadian Mineralogist, 55 (3) 473-481 doi:10.3749/canmin.1700004

Synonyms of BurroiteHide

Other Language Names for BurroiteHide

Dutch:Burroiet
German:Burroit

Relationship of Burroite to other SpeciesHide

Member of:
Pascoite Family Group
Other Members of Pascoite Family:
Ammoniolasalite[(NH4)2Mg2(H2O)20] [V10O28]Mon. 2/m : B2/b
BluestreakiteK4Mg2(V4+2V5+8O28) · 14H2OMon. 2/m : P21/c
Caseyite[(V5+O2)Al10-x(OH)20-2x(H2O)18-2x]2[H2V4+V5+9O28][V5+10O28]2(Na,K,Ca)2-y(SO4)2-z · (60+8x+y+4z)H2O (x = 0-2.5; y = 0-2; z = 0-2)Mon. 2/m : P21/c
Flatimerite[Al13(OH)24(H2O)24][V5+9V4+O28] · [(SO4)4(H2O)24]Tric. 1 : P1
GunteriteNa4Ca(V10O28) · 20H2OMon. 2/m : B2/m
HuemuliteNa4Mg(V10O28) · 24H2OTric.
HughesiteNa3Al(V10O28) · 22H2OTric. 1 : P1
HummeriteK2Mg2(V10O28) · 16H2OTric. 1 : P1
HydropascoiteCa3(V10O28) · 24H2OTric. 1 : P1
KokinositeNa2Ca2(V10O28) · 24H2OTric. 1 : P1
LasaliteNa2Mg2(V10O28) · 20H2OMon. 2/m : B2/b
MagnesiopascoiteCa2Mg(V10O28) · 16H2OMon. 2/m : B2/m
NashiteNa3Ca2[(V5+9V4+)O28] · 24H2OMon. 2/m : P21/m
OkieiteMg3[V10O28] · 28H2OTric. 1 : P1
PascoiteCa2Ca(V10O28) · 17H2OMon. 2 : B2
PostiteMg(H2O)6Al2(OH)2(H2O)8(V10O28) · 13H2OOrth. mmm(2/m2/m2/m) : Pccn
Protocaseyite[Al4(OH)6(H2O)12][V10O28] · 8H2OTric. 1 : P1
Rakovanite(NH4)3Na3(V10O28) · 12H2OMon. 2/m : P21/c
Schindlerite{(NH4)4Na2(H2O)10}{V10O28}Tric. 1 : P1
TrebiskyiteNa3Mg2[TiV9O28] · 22H2OMon. 2/m : P21/c
Wernerbaurite{(NH4)2[Ca2(H2O)14](H2O)2}{V10O28}Tric. 1 : P1

Common AssociatesHide

Associations Based on Photo Data:
2 photos of Burroite associated with Schindlerite{(NH4)4Na2(H2O)10}{V10O28}

Related Minerals - Strunz-mindat GroupingHide

4.HC.Protocaseyite[Al4(OH)6(H2O)12][V10O28] · 8H2OTric. 1 : P1
4.HC.Ammoniolasalite[(NH4)2Mg2(H2O)20] [V10O28]Mon. 2/m : B2/b
4.HC.BeckettiteCa2V6Al6O20Tric. 1 : P1
4.HC.Flatimerite[Al13(OH)24(H2O)24][V5+9V4+O28] · [(SO4)4(H2O)24]Tric. 1 : P1
4.HC.05PascoiteCa2Ca(V10O28) · 17H2OMon. 2 : B2
4.HC.05HydropascoiteCa3(V10O28) · 24H2OTric. 1 : P1
4.HC.05LasaliteNa2Mg2(V10O28) · 20H2OMon. 2/m : B2/b
4.HC.05HughesiteNa3Al(V10O28) · 22H2OTric. 1 : P1
4.HC.05MagnesiopascoiteCa2Mg(V10O28) · 16H2OMon. 2/m : B2/m
4.HC.05Rakovanite(NH4)3Na3(V10O28) · 12H2OMon. 2/m : P21/c
4.HC.10HummeriteK2Mg2(V10O28) · 16H2OTric. 1 : P1
4.HC.15SherwooditeCa5.5(AlV4+V5+12O39) · 28H2OTet. 4/mmm(4/m2/m2/m) : I41/amd
4.HC.20BluestreakiteK4Mg2(V4+2V5+8O28) · 14H2OMon. 2/m : P21/c
4.HC.25Wernerbaurite{(NH4)2[Ca2(H2O)14](H2O)2}{V10O28}Tric. 1 : P1
4.HC.30Caseyite[(V5+O2)Al10-x(OH)20-2x(H2O)18-2x]2[H2V4+V5+9O28][V5+10O28]2(Na,K,Ca)2-y(SO4)2-z · (60+8x+y+4z)H2O (x = 0-2.5; y = 0-2; z = 0-2)Mon. 2/m : P21/c
4.HC.35GunteriteNa4Ca(V10O28) · 20H2OMon. 2/m : B2/m
4.HC.40KokinositeNa2Ca2(V10O28) · 24H2OTric. 1 : P1
4.HC.45NashiteNa3Ca2[(V5+9V4+)O28] · 24H2OMon. 2/m : P21/m
4.HC.50OkieiteMg3[V10O28] · 28H2OTric. 1 : P1
4.HC.55PostiteMg(H2O)6Al2(OH)2(H2O)8(V10O28) · 13H2OOrth. mmm(2/m2/m2/m) : Pccn
4.HC.60Schindlerite{(NH4)4Na2(H2O)10}{V10O28}Tric. 1 : P1

Fluorescence of BurroiteHide

In UV light:
Not fluorescent.

Other InformationHide

Notes:
At room temperature, burroite is very slowly soluble in H2O and rapidly soluble (within seconds) in dilute HCl.
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 BurroiteHide

References for BurroiteHide

Localities for BurroiteHide

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.
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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)
 
  • Colorado
    • San Miguel County
Hålenius et al. (2016) +2 other references
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