Väyrynenite
A valid IMA mineral species - grandfathered
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About Väyrynenite
Heikki A. Väyrynen
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.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
symbol to view information about a locality.
The 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).
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