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| Väyrynenite is
named after Heikki Allen Väyrynen (1888-1956), professor of mineralogy, Technical
Institute, Helsinski, Finland.
| Discovered
in 1954.
IMA
status: Valid (pre-IMA; Grandfathered) |
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Chemistry
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Chemical
Formula: |
Mn2+Be(PO4)(OH)
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Manganese
Beryllium Phosphate Hydroxide |
Molecular
Weight: |
176.43 gm |
Composition: |
Manganese |
31.14 % |
Mn |
40.21 % |
MnO |
|
Beryllium |
5.11 % |
Be |
14.18 % |
BeO |
|
Phosphorus |
17.56 % |
P |
40.23 % |
P2O5 |
|
Hydrogen |
0.43 % |
H |
3.83 % |
H2O |
|
Oxygen |
43.08 % |
O |
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Fluorine |
2.79 % |
F |
2.69 % |
F |
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|
- % |
F |
-1.13 % |
-O=F2
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|
|
100.00 % |
|
100.00 % |
= TOTAL OXIDE |
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Classification
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Mineral
Classification: |
Phosphates
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Strunz 8th
Ed. ID:
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7/B.01-50
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Nickel-Strunz 10th
Ed. ID:
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8.BA.05
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8 : PHOSPHATES, ARSENATES, VANADATES
B : Phosphates, etc., with additional anions, without H2O
A : With small and medium-sized cations
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Related
to: |
n/a
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Varieties: |
None
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Synonyms: |
Vaerynenite
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Crystal
Data
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Crystallography:
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Monoclinic
- Prismatic
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Crystal
Habit:
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Rare
prismatic crystals, elongated and striated, a number
of additional modifying forms, to 6 cm; typically in
fine-grained aggregates.
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Twinning:
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None
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Physical
Properties
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Cleavage: |
Perfect
on {010}, Good on {100}, Fair on {001}
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Fracture: |
Uneven/Irregular
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Tenacity:
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Brittle
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Moh's
Hardness: |
5.0
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Density:
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3.183
- 3.215 (g/cm3)
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Luminescence:
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None
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Radioactivity:
|
Not
Radioactive
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Optical
Properties
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Color: |
Rose-Red,
Salmon-Pink, pale Pink, Brownish Pink, pale Gray
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Transparency: |
Transparent
to Translucent
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Luster: |
Vitreous
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Refractive
Index: |
1.638
- 1.667 Biaxial ( - )
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Birefringence: |
0.0260
- 0.0270
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Dispersion: |
Weak to Moderate;
r > v
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Pleochroism: |
Visible;
X
= orangish; Y
= red; Z
= dark red
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Occurances
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Geological
Setting: |
An
alteration product of beryl and triphylite in complex
zoned granite pegmatites. |
Common
Associations: |
Eosphorite,
Moraesite, Hurlbutite, Beryllonite, Amblygonite, Apatite,
Tourmaline, Topaz, Muscovite, Microcline, Quartz. |
Type
Locality: |
Viitaniemi pegmatite, Eräjärvi area, Orivesi,
Etelä-Suomen Lääni, Finland |
Year
Discovered: |
1954
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View
mineral photos: |
Väyrynenite
Mineral Photos and Locations |
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More
Information
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|
Mindat.org
Webmineral.com
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Väyrynenite is a very
rare collector's gem rarely seen in the gem market.
Väyrynenite
is found in facet
grade in a couple locations; Afghanistan and
Pakistan. It was discovered at Viitaniemi, Erajarvi, Finland,
but not gem grade. Very few gems are known to exist
and are typically very small and heavily included. Colors
are pale pink to rose red. To mineral collectors, Väyrynenite
is considered one of the "holy grails" of
rare Pakistani and Afghani mineral species. The other is Triplite which
comes from the same regions.
Distribution:
In the Viitaniemi pegmatite, near Erääjärvi, Finland.
From the Norrö pegmatite, on Rånö Island, and from near
Kapelludden, Utö Island, Sweden. In the Bendada pegmatite,
near Guarda, Portugal. At the Fregeneda pegmatite, Salamanca
Province, Spain. From the Kalba Range, eastern Kazakhstan.
Large crystals found in Broghul Pass, Chitral Valley,
Pakistan.
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Väyrynenite
gems for sale:
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Gem:
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Väyrynenite |
Stock
#:
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VAYR-001 |
Weight:
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0.1455
ct |
Size: |
4.03
x 2.95 x 1.85 mm |
Shape: |
Oval |
Color: |
Rose
pink |
Clarity: |
Heavily
Included |
Origin: |
Laghman
Province, Afghanistan |
Treatment: |
None
(natural) |
Price: |
SOLD (but we have others)
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Pictures
are of the actual gem offered for
sale. Gem images are magnified to
show detail. |
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This extemely
rare gem is from Laghman Province, Afghanistan.
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