Krasnovite
A valid IMA mineral species
This page is currently not sponsored. Click here to sponsor this page.
About Krasnovite
Formula:
Ba(Al,Mg)(PO4,CO3)(OH)2 · H2O
Colour:
Pale blue
Lustre:
Silky
Hardness:
2
Specific Gravity:
3.70
Crystal System:
Orthorhombic
Name:
Named in honor of Natalia Ivanovna Krasnova (Наталия Ивановна Краснова) (1941-), mineralogist at St. Petersburg University.
This page provides mineralogical data about Krasnovite.
Unique Identifiers
Mindat ID:
7145
Long-form identifier:
mindat:1:1:7145:7
GUID
(UUID V4):
(UUID V4):
4c4e21ab-cacb-48a2-a07c-0d134ba9d320
IMA Classification of Krasnovite
Approved
Approval year:
1991
First published:
1996
Classification of Krasnovite
8.DK.35
8 : PHOSPHATES, ARSENATES, VANADATES
D : Phosphates, etc. with additional anions, with H2O
K : With large and medium-sized cations, (OH, etc.):RO4 > 1:1 and < 2:1
8 : PHOSPHATES, ARSENATES, VANADATES
D : Phosphates, etc. with additional anions, with H2O
K : With large and medium-sized cations, (OH, etc.):RO4 > 1:1 and < 2:1
Mineral Symbols
As of 2021 there are now IMA–CNMNC approved mineral symbols (abbreviations) for each mineral species, useful for tables and diagrams.
Symbol | Source | Reference |
---|---|---|
Kv | IMA–CNMNC | Warr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43 |
Pronunciation of Krasnovite
Pronunciation:
Play | Recorded by | Country |
---|---|---|
Jolyon Ralph | United Kingdom |
Physical Properties of Krasnovite
Silky
Transparency:
Translucent
Colour:
Pale blue
Streak:
White
Hardness:
2 on Mohs scale
Cleavage:
Perfect
Two parallel to [010]
Two parallel to [010]
Density:
3.70(5) g/cm3 (Measured) 3.691 g/cm3 (Calculated)
Optical Data of Krasnovite
Type:
Biaxial (-)
RI values:
nα = 1.616(2) nβ = 1.629(2) nγ = 1.640(2)
2V:
Measured: 70° to 90°, Calculated: 84°
Max Birefringence:
δ = 0.024
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
and does not take into account mineral colouration.
Surface Relief:
Moderate
Dispersion:
strong
Pleochroism:
Non-pleochroic
Chemistry of Krasnovite
Mindat Formula:
Ba(Al,Mg)(PO4,CO3)(OH)2 · H2O
Crystallography of Krasnovite
Crystal System:
Orthorhombic
Class (H-M):
mmm (2/m 2/m 2/m) - Dipyramidal
Cell Parameters:
a = 8.939(2) Å, b = 5.669(3) Å, c = 11.073(3) Å
Ratio:
a:b:c = 1.577 : 1 : 1.953
Unit Cell V:
561.13 ų (Calculated from Unit Cell)
Z:
4
Comment:
space group Pnna or Pnnn
X-Ray Powder Diffraction
Powder Diffraction Data:
d-spacing | Intensity |
---|---|
2.768 Å | (100) |
3.479 Å | (82) |
5.54 Å | (79) |
2.543 Å | (61) |
3.345 Å | (59) |
2.072 Å | (41) |
2.354 Å | (32) |
Geological Environment
Paragenetic Mode(s):
Paragenetic Mode | Earliest Age (Ga) |
---|---|
Stage 4b: Highly evolved igneous rocks | >3.0 |
35 : Ultra-alkali and agpaitic igneous rocks | |
36 : Carbonatites, kimberlites, and related igneous rocks | |
Stage 7: Great Oxidation Event | <2.4 |
47a : [Near-surface hydration of prior minerals] | |
47c : [Carbonates, phosphates, borates, nitrates] |
Type Occurrence of Krasnovite
General Appearance of Type Material:
Spherulites, up to 3 mm across, consisting of pale blue fibers.
Place of Conservation of Type Material:
Mineralogy Department of Saint Petersburg University and the Saint Petersburg Mining Institute, Russia.
Geological Setting of Type Material:
Dolomite carbonatite.
Associated Minerals at Type Locality:
Reference:
Britvin, S. N., Pakhomovskii, Ya. A. and Bogdanova, A. N. (1996): Krasnovite, Ba(Al,Mg)(PO4,CO3)(OH)2•H2O - a new mineral. Zapiski Vserossiyskogo Mineralogicheskogo Obshchestva: 125: 110-112.
Synonyms of Krasnovite
Other Language Names for Krasnovite
German:Krasnovit
Spanish:Krasnovita
Common Associates
Associated Minerals Based on Photo Data:
Related Minerals - Strunz-mindat Grouping
8.DK. | Richelsdorfite | Ca2Cu5Sb(AsO4)4(OH)6Cl · 6H2O |
8.DK. | Bimbowrieite | NaMgFe3+5(PO4)4(OH)6 · 2H2O |
8.DK. | Puttapaite | Pb2Mn2+2ZnCr3+4O2(AsO4)4(OH)6 · 12H2O |
8.DK.10 | Bariopharmacosiderite | Ba0.5Fe3+4(AsO4)3(OH)4 · 5H2O |
8.DK.10 | Pharmacosiderite | KFe3+4(AsO4)3(OH)4 · 6-7H2O |
8.DK.10 | Natropharmacosiderite | NaFe3+4(AsO4)3(OH)4 · 4H2O |
8.DK.10 | Hydroniumpharmacosiderite | (H3O)Fe4(AsO4)3(OH)4 · 4H2O |
8.DK.10 | Strontiopharmacosiderite | Sr0.5Fe4[(AsO4)3(OH)4] · 4H2O |
8.DK.10 | Thalliumpharmacosiderite | TlFe4[(AsO4)3(OH)4] · 4H2O |
8.DK.10 | Plumbopharmacosiderite | Pb0.5Fe3+4(AsO4)3(OH)4 · 5H2O |
8.DK.12 | Pharmacoalumite | KAl4(AsO4)3(OH)4 · 6.5H2O |
8.DK.12 | Natropharmacoalumite | NaAl4(AsO4)3(OH)4 · 4H2O |
8.DK.12 | Bariopharmacoalumite | Ba0.5Al4(AsO4)3(OH)4 · 4H2O |
8.DK.12 | Hydroniumpharmacoalumite | (H3O)Al4(AsO4)3(OH)4 · 4.5H2O |
8.DK.15 | Burangaite | NaFe2+Al5(PO4)4(OH)6 · 2H2O |
8.DK.15 | Dufrénite | Ca0.5Fe2+Fe3+5(PO4)4(OH)6 · 2H2O |
8.DK.15 | Natrodufrénite | NaFe2+Fe3+5(PO4)4(OH)6 · 2H2O |
8.DK.15 | Matioliite | NaMgAl5(PO4)4(OH)6 · 2H2O |
8.DK.15 | Gayite | NaMn2+Fe3+5(PO4)4(OH)6 · 2H2O |
8.DK.20 | Kidwellite | NaFe3+9+x(PO4)6(OH)11 · 3H2O, x = 0.33 |
8.DK.25 | Bleasdaleite | (Ca,Fe3+)2Cu5(Bi,Cu)(PO4)4(H2O,OH,Cl)13 |
8.DK.30 | Matulaite | (Fe3+,Al)Al7(PO4)4(PO3OH)2(OH)8(H2O)8 · 8H2O |
Other Information
Notes:
Decomposes with effervescence in warm 10% 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 Krasnovite
mindat.org URL:
https://www.mindat.org/min-7145.html
Please feel free to link to this page.
Please feel free to link to this page.
Search Engines:
External Links:
Mineral Dealers:
References for Krasnovite
Localities for Krasnovite
Locality List
- 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.
All localities listed without proper references should be considered as questionable.
Bolivia | |
| Alfredo Petrov and Matthias Rheinlander ... |
Russia (TL) | |
| Britvin et al. (1996) +1 other reference |
Mikhailova et al. (2016) |
Quick NavTopAbout KrasnoviteUnique IdentifiersIMA Classification Classification Mineral SymbolsPronunciation Physical Properties Optical Data Chemistry Crystallography X-Ray Powder DiffractionGeological EnvironmentType Occurrence SynonymsOther LanguagesCommon AssociatesStrunz-MindatOther InformationInternet Links References Localities Locality List
Cerro Sapo, Ayopaya Province, Cochabamba, Bolivia