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$101.00
Reserve Not Met
Current Bid
2
Bids
05/12/2024 09:05 am
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3

Presenting World rare gems vayryenite from Pakistan

SKU
Vay1
Dimensions (mm)
15.300 x 2.650 x 1.650mm
Weight (cts)
0.690
Treatment
No Treatment
Shape
Emerald
Type
Faceted
Clarity
VS
Colours

Väyrynenite is a rare phosphate mineral with formula MnBe(PO4)(OH,F). It was first described in 1954 for an occurrence in Viitaniemi, Erajarvi, Finland and named for mineralogist Heikki Allan Väyrynen of Helsinki, Finland

CategoryPhosphate mineralFormula
(repeating unit)MnBe(PO4)(OH,F)IMA symbolVäy[1]Strunz classification8.BA.05Crystal systemMonoclinicCrystal classPrismatic (2/m)
(same H-M symbol)Space groupP21/aUnit cella = 5.411(5) Å,
b = 14.49(2) Å,
c = 4.73 Å;
β = 102.75°; Z = 4IdentificationColorLight pink to rose-red, salmon pink, pale gray, brownCrystal habitRare as elongated and striated prismatic crystals; fine-grained aggregatesCleavagePerfect on {010}, good on {100}, fair on {001}FractureUnevenTenacityBrittleMohs scale hardness5LusterVitreousStreakWhiteDiaphaneityTransparent to translucentSpecific gravity3.22Optical propertiesBiaxial (–)Refractive indexnα = 1.638 - 1.640 nβ = 1.658 - 1.662 nγ = 1.664 - 1.667Birefringenceδ = 0.026 - 0.027PleochroismVisible X= orangish, Y= red, Z= dark red2V angle46°–55°Dispersionr > v moderateReferences[2][3][4]

It occurs in pegmatites as an alteration of beryl and triphylite. It occurs in association with eosphorite, moraesite, hurlbutite, beryllonite, amblygonite, apatite, tourmaline, topaz, muscovite, microclineand quartz.[4]

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mbgems
mbgems
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Bids History (2)

Reserve not met

1 month ago
$100.00
1 month ago
$75.00

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Shipping Details

Shipping:
$10.00 21 days via Standard Shipping - Tracked
Ships from:
Thailand

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Overview

Listing Type : Standard
Product ID : 2586335
Estimated RRP : $2,500.00
Starting Bid : $1
Starts : 21st November 2024 09:05 am PST
Ends : 5th December 2024 09:05 am PST
* All prices are in USD