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      $11.00
      当前出价
      7
      出价
      关闭
      21/11/2024 04:56 am

      1.70 Carats Green Color Tourmaline Gemstone

      7
      132
      2

      存货单位
      尺寸(毫米)
      6.650 x 6.250 x 5.270mm
      重量 (cts)
      1.700
      类型
      Faceted
      颜色

      CategoryCyclosilicateFormula
      (repeating unit)(Ca,K,Na, )(Al,Fe,Li,Mg,Mn)3(Al,Cr,Fe,V)6
      (BO3)3(Si,Al,B)6O18(OH,F)4[1][2]IMA symbolTur[3]Crystal systemTrigonalCrystal classDitrigonal pyramidal (3m)
      H-M symbol: (3m)Space groupR3m (no. 160)IdentificationColorMost commonly black, but can range from colorless to brown, red, orange, yellow, green, blue, violet, pink, or hues in-between. It can also be bi-colored, or even tri-colored. Rarely, it can be found as neon green or electric blue.Crystal habitParallel and elongated; acicular prisms, sometimes radiating; massive; scattered grains (in granite)CleavageIndistinctFractureUneven, small conchoidalTenacityBrittleMohs scale hardness7.0–7.5LusterVitreous, sometimes resinousStreakWhiteDiaphaneityTranslucent to opaqueSpecific gravity3.06+0.20–0.06[1]Density2.82–3.32Polish lusterVitreous[1]Optical propertiesDouble-refractive, uniaxial negative[1]Refractive indexnω = 1.635–1.675
      nε = 1.610–1.650Birefringence−0.018 to −0.040; typically about −0.020 but in dark stones it may reach −0.040[1]Pleochroism

      • Typically moderate to strong[1]

      • Red: definite; dark red, light red

      • Green: strong; dark green, yellow-green

      • Brown: definite; dark brown, light brown

      • Blue: strong; dark blue, light blue

      Dispersion0.017[1]UltravioletfluorescencePink stones; inert to very weak red to violet in long and short wave[1]Absorption spectraStrong narrow band at 498 nm, and almost complete absorption of red down to 640 nm in blue and green stones; red and pink stones show lines at 458 and 451 nm, as well as a broad band in the green spectrum[1]

      运输商 运送至:国家 运送到世界其他地区
      Standard Shipping - Tracked $18.00 / :几天天 $18.00 / :几天天
      :国家
      Standard Shipping - Tracked折扣至$22.00 ,适用于包含2或更多商品的订单
      世界其他地区
      Standard Shipping - Tracked折扣至$22.00 ,适用于包含2或更多商品的订单
      DHL $28.00 / :几天天 $28.00 / :几天天
      :国家
      DHL折扣至$38.00 ,适用于包含2或更多商品的订单
      世界其他地区
      DHL折扣至$38.00 ,适用于包含2或更多商品的订单

      gemstoneshunter
      gemstoneshunter
      :城市,国家
      已验证
      :总反馈

      • 89irocz28
        89irocz28
        积极的

        Item as described. AIG certified. Tested good in USA. Fast shipping. Good communication. Will buy from seller again. Thank You, R.C. Page

      • heykittykitty
        heykittykitty
        积极的

        Lovely shade of green, beautiful stone. Quickly shipped.

      投标历史 (7)
      jrwjewel
      3个月前
      $10.00
      lordloku
      3个月前
      $9.00
      lordloku
      3个月前
      $8.00
      petrmich
      3个月前
      $7.00
      lordloku
      3个月前
      $6.00
      petrmich
      3个月前
      $5.00
      lordloku
      3个月前
      $1.00

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      送货细节

      船运:
      $18.00 23通过Standard Shipping - Tracked计数天数
      发货自:
      Thailand

      付款方式

      • paypal

      概述

      列表类型 : Standard
      产品编号 : 2620676
      起拍价 : $1
      开始 : 17th November 2024 04:56 am PST
      结束 : 21st November 2024 04:56 am PST
      * 所有价格均以:货币为单位