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$101.00
預留未滿足
當前出價
2
出價
05/12/2024 09:05 am
2
132
3

Presenting World rare gems vayryenite from Pakistan

存貨單位
Vay1
尺寸(毫米)
15.300 x 2.650 x 1.650mm
重量 (cts)
0.690
Treatment
No Treatment
Shape
Emerald
類型
Faceted
Clarity
VS
顏色

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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*Welcome to MB Gems, Where Elegance Meets Excellence* *Providing artistic fine gemstone to jewellers, designers , collectors and end users* At MB Gems, we're passionate about crafting timeless treasures that adorn your life with beauty, sophistication, and joy. As a renowned gemstone company, we've been selling precious / semi Precious stones for over 9 years. We are sourcing conflict-free gems and environmentally responsible materials *Our Collections:* Emerald, Ruby , Sapphire , Tourmaline , Sphene, Tanzanite , Aquamarine *Why Choose MB Gems ? - Authenticity guaranteed - ⁠Fair prices - Personalized service *Explore Our World of Gems :* Discover the perfect gemstone pieces to cherish, gift, or treasure. Browse our collections.
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概述

列表類型 : Standard
產品編號 : 2586335
預計建議零售價 : $2,500.00
起拍價 : $1
開始 : 21st November 2024 09:05 am PST
結束 : 5th December 2024 09:05 am PST
* 所有價格均以:貨幣為單位