THE PREMIER MARKETPLACE FOR REAL GEMS
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      $25.00 USD
      Prix ​​de vente conseillé estimé $90.00

      6.30 Cts-Rhodhochrosite Cabochone (2 PCS) TBG-4242 truebluegems

      455
      0

      UGS
      TBG-4242
      Dimensions (mm)
      9.000 x 9.000 x 4.000mm
      Poids (cts)
      6.300
      Treatment
      No Treatment
      Shape
      Round
      Taper
      Cabochon
      Couleurs

      TRADING AS LIGHTNINGOPALS LLC-TRUEBLUEOPALS AND GEMS

      RHODHOCROSITE

      Origin Argentina

      2 PCS
      POLISHED

      Beautiful PINK COLOUR
      Treatment-NONE

      Diaphaneity, Transparent to translucent. Specific gravity, 3.7. Optical properties, Uniaxial (-). Refractive index, nω = 1.814 - 1.816 nε = 1.596 - 1.598. Birefringence, δ = 0.218. Pleochroism, weak. Ultraviolet fluorescence, None. References. Rhodochrosite is a manganese carbonate mineral with chemical composition MnCO3.

      Crystal system‎: ‎Trigonal

      Mohs scale hardness‎: ‎3.5-4

      Crystal class‎: ‎Hexagonal scalenohedral (3m); ...

      Optical properties‎: ‎Uniaxial (-)

      Rhodochrosite is a manganese carbonate mineral with chemical composition MnCO3. In its (rare) pure form, it is typically a rose-red color, but impure specimens can be shades of pink to pale brown. It streaks white, and its Mohs hardness varies between 3.5 and 4. Its specific gravity is between 3.5 and 3.7. It crystallizes in the trigonal system, and cleaves with rhombohedral carbonate cleavage in three directions. Crystal twinning often is present. It is transparent to translucent with refractive indices of =1.814 to 1.816, =1.596 to 1.598. It is often confused with the manganese silicate, rhodonite, but is distinctly softer.

      Rhodochrosite forms a complete solid solution series with iron carbonate (siderite). Calcium, (as well as magnesium and zinc, to a limited extent) frequently substitutes for manganese in the structure, leading to lighter shades of red and pink, depending on the degree of substitution. It is for this reason that the most common color encountered is pink.

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      truebluegems
      truebluegems
      family business
      Mermaid Beach , Australia
      Vérifié
      5065

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      31st Jan 2025

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      Les détails d'expédition

      Expédition:
      $30.00 14 les jours via Standard Shipping - Tracked
      Expédié depuis:
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      Type d'inscription : Standard
      Identifiant du produit : 2494131
      Départs : 28th January 2025 09:00 pm PST
      * Tous les prix sont en USD