Väyrynenite
A valid IMA mineral species - grandfathered
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About Väyrynenite
Formula:
BeMn2+(PO4)(OH)
May contain minor F substituting for OH.
Colour:
Light pink to rose-red, salmon pink, pale gray, brown
Lustre:
Vitreous
Hardness:
5
Specific Gravity:
3.22
Crystal System:
Monoclinic
Name:
Named after Heikki Allen Väyrynen (1888-1956), professor of mineralogy, Technical High School, Helsinki (Finland).
The manganese-beryllium-phosphate väyrynenite was first recognized in 1939 as a possible new mineral by Oleg von Knorring (1915-1994). However, it was first described as a new mineral by Volborth (1954), from Viitaniemi, Eräjärvi, Finland. Additional mineralogical data and new chemical analysis was given by Mrose and von Knorring (1959).
Unique Identifiers
Mindat ID:
4220
Long-form identifier:
mindat:1:1:4220:4
GUID
(UUID V4):
(UUID V4):
d06d41d2-2f4f-4dd2-b701-f27a2688db86
IMA Classification of Väyrynenite
Approved, 'Grandfathered' (first described prior to 1959)
First published:
1954
Classification of Väyrynenite
8.BA.05
8 : PHOSPHATES, ARSENATES, VANADATES
B : Phosphates, etc., with additional anions, without H2O
A : With small and medium-sized cations
8 : PHOSPHATES, ARSENATES, VANADATES
B : Phosphates, etc., with additional anions, without H2O
A : With small and medium-sized cations
41.5.4.3
41 : ANHYDROUS PHOSPHATES, ETC.CONTAINING HYDROXYL OR HALOGEN
5 : (AB)2(XO4)Zq
41 : ANHYDROUS PHOSPHATES, ETC.CONTAINING HYDROXYL OR HALOGEN
5 : (AB)2(XO4)Zq
22.1.20
22 : Phosphates, Arsenates or Vanadates with other Anions
1 : Phosphates, arsenates or vanadates with fluoride
22 : Phosphates, Arsenates or Vanadates with other Anions
1 : Phosphates, arsenates or vanadates with fluoride
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 |
---|---|---|
Väy | 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 Väyrynenite
Vitreous
Transparency:
Transparent, Translucent
Colour:
Light pink to rose-red, salmon pink, pale gray, brown
Streak:
White
Hardness:
5 on Mohs scale
Tenacity:
Brittle
Cleavage:
Perfect
Perfect {010}, good {100}, fair {001}.
Perfect {010}, good {100}, fair {001}.
Fracture:
Irregular/Uneven
Density:
3.22 g/cm3 (Measured) 3.23 g/cm3 (Calculated)
Optical Data of Väyrynenite
Type:
Biaxial (-)
RI values:
nα = 1.638 - 1.640 nβ = 1.658 - 1.662 nγ = 1.664 - 1.667
2V:
Measured: 46° to 55°, Calculated: 51° to 57°
Max Birefringence:
δ = 0.026 - 0.027
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:
r > v moderate
Pleochroism:
Visible
Comments:
X= orangish
Y= red
Z= dark red
Y= red
Z= dark red
Chemistry of Väyrynenite
Mindat Formula:
BeMn2+(PO4)(OH)
May contain minor F substituting for OH.
May contain minor F substituting for OH.
Common Impurities:
F
Chemical Analysis
Oxide wt%:
1 | |
---|---|
MnO | 34.01 % |
FeO | 5.92 % |
CaO | 0.53 % |
BeO | 13.85 % |
Na2O | 0.20 % |
K2O | 0.04 % |
Al2O3 | 0.40 % |
Li2O | traces % |
P2O5 | 39.98 % |
H2O+ | 4.93 % |
H2O- | 0.19 % |
F | 0.00 % |
insol. | 0.06 % |
Total: | 100.11 % |
Sample references:
ID | Locality | Reference | Notes |
---|---|---|---|
1 | Viitaniemi pegmatite, Eräjärvi area, Orivesi, Pirkanmaa, Finland | Chemical analysis by von Knorring. |
Crystallography of Väyrynenite
Crystal System:
Monoclinic
Class (H-M):
2/m - Prismatic
Space Group:
P21/b
Cell Parameters:
a = 5.4044(6) Å, b = 14.5145(12) Å, c = 4.7052(6) Å
β = 102.798(9)°
β = 102.798(9)°
Ratio:
a:b:c = 0.372 : 1 : 0.324
Unit Cell V:
359.91 ų
Z:
4
Morphology:
Often as fine grained aggregates. Euhedral crystals are rare. Short to long prismatic crystals parallel to [001]. Forms observed: {001}, prisms {010} and {110}. Prism faces are generally striated vertically
Comment:
Huminicki and Hawthorne (2000)
X-Ray Powder Diffraction
Powder Diffraction Data:
d-spacing | Intensity |
---|---|
3.452 Å | (100) |
7.251 Å | (85) |
2.885 Å | (85) |
4.399 Å | (60) |
2.662 Å | (42) |
2.951 Å | (35) |
4.960 Å | (25) |
Comments:
Viitaniemi pegmatite, Finland. Data from Mrose and Von Knorring (1959).
Geological Environment
Paragenetic Mode(s):
Paragenetic Mode | Earliest Age (Ga) |
---|---|
Near-surface Processes | |
22 : Hydration and low-𝑇 subsurface aqueous alteration (see also #23) |
Geological Setting:
Alteration product of beryl and triphylite in complex granitic pegmatites.
Type Occurrence of Väyrynenite
Place of Conservation of Type Material:
National Museum of Natural History, Washington, D.C., USA, number R11807 (type).
Geological Setting of Type Material:
Granite pegmatite.
Associated Minerals at Type Locality:
Synonyms of Väyrynenite
Other Language Names for Väyrynenite
Common Associates
Associated Minerals Based on Photo Data:
24 photos of Väyrynenite associated with Cleavelandite | Na(AlSi3O8) |
23 photos of Väyrynenite associated with Topaz | Al2(SiO4)(F,OH)2 |
21 photos of Väyrynenite associated with Eosphorite | Mn2+Al(PO4)(OH)2 · H2O |
14 photos of Väyrynenite associated with Muscovite | KAl2(AlSi3O10)(OH)2 |
14 photos of Väyrynenite associated with Quartz | SiO2 |
11 photos of Väyrynenite associated with Hurlbutite | CaBe2(PO4)2 |
11 photos of Väyrynenite associated with Schorl | NaFe2+3Al6(Si6O18)(BO3)3(OH)3(OH) |
11 photos of Väyrynenite associated with Indicolite | A(D3)G6(T6O18)(BO3)3X3Z |
8 photos of Väyrynenite associated with Tourmaline | AD3G6 (T6O18)(BO3)3X3Z |
8 photos of Väyrynenite associated with Tantalite-(Mn) | Mn2+Ta2O6 |
Related Minerals - Strunz-mindat Grouping
8.BA. | Axelite | Na14Cu7(AsO4)8F2Cl2 |
8.BA. | Vladkuzminite | K4CuZn3(AsO4)4 |
8.BA.10 | Bergslagite | CaBeAsO4(OH) |
8.BA.10 | Herderite | CaBe(PO4)F |
8.BA.10 | Hydroxylherderite | CaBe(PO4)(OH) |
8.BA.15 | Babefphite | BaBePO4(F,OH) |
Other Information
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 Väyrynenite
mindat.org URL:
https://www.mindat.org/min-4220.html
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References for Väyrynenite
Reference List:
Mrose, Mary E., von Knorring, Oleg (1959) The mineralogy of väyrynenite, (Mn,Fe)Be(PO4)(OH) Zeitschrift für Kristallographie - Crystalline Materials, 112 (1) 275-288 doi:10.1524/zkri.1959.112.1-6.275
Mrose, Mary E., Appleman, Daniel E. (1962) The crystal structures and crystal chemistry of väyrynenite, (Mn,Fe)Be(PO4)(OH), and euclase, AlBe(SiO4)(OH) Zeitschrift für Kristallographie - Crystalline Materials, 117 (1) 16-36 doi:10.1524/zkri.1962.117.1.16
Meixner, Heinz, Paar, Werner (1976) Vorkommen von Väyrynenit-Kristallen aus „Pakistan“. Zeitschrift für Kristallographie - Crystalline Materials, 143 (jg) 309 doi:10.1524/zkri.1976.143.jg.309
Localities for Väyrynenite
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.
Afghanistan | |
| Lyckberg (2011) |
China | |
| Yueqing Yang et al. (1987) +3 other references |
Finland | |
| Lahti (1981) |
| Volborth (1954) +5 other references |
Kazakhstan | |
| Gordiyenko et al. (1973) +1 other reference |
Pakistan | |
| Moore (2005) |
| Blauwet (2006) |
H. Obodda | |
imported from Shigar District +2 other references | |
| Meixner & Paar (1976) |
Portugal | |
| Schnorrer-Köhler (1991) |
Russia | |
| Lykova I. S. et al. (2017) |
Spain | |
| Roda Robles et al. (1999) +1 other reference |
Sweden | |
| Nysten et al. (2006) |
| Langhof et al. (2016) |
USA | |
| A.U. Falster et al. (2011) |
| Falster et al. (2019) |
King et al. (1994) +1 other reference | |
| Falster et al. (1996) |
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Shengus, Roundu District, Gilgit-Baltistan, Pakistan