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      $1,761.00 USD
      Prix ​​de vente conseillé estimé $5,200.00

      88.05 CTS Natural Rhodochrosite Argentina Gem grade TBM-1722

      3300
      0

      UGS
      Dimensions (mm)
      63.000 x 38.000 x 4.000mm
      Poids (cts)
      88.050
      Treatment
      No Treatment
      Couleurs

      RHODHOCROSITE

      Origin Argentina

      free form cabs
      highly polished
      Natural Rhodochrosite

      Beautiful watermelon - Color
      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.

      Fournisseur d'expédition Expédition vers Australia Expédition dans le reste du monde
      Standard Shipping - Tracked $20.00 / 7 $30.00 / 14
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      FedEx $40.00 / 3 $40.00 / 7
      Australia
      FedEx bénéficie d'une remise de $40.00 sur les commandes contenant 2 ou plus d'articles
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      DHL $30.00 / 2 $30.00 / 21
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      DHL bénéficie d'une remise de $30.00 sur les commandes contenant 2 ou plus d'articles

      trueblueminerals
      trueblueminerals
      rare large gemstones and minerals
      Mermaid Beach , Australia
      Vérifié
      814

      • peketrain
        peketrain
        Positif

        Very pleased with the specimen and transaction

      • scsamler
        scsamler
        Positif

        This stone made me fall in love with Padparadsha sapphire. Truly wonderful!

      • gmiller69
        gmiller69
        Positif

        Paid and shipped - no feedback left after 100 days

      20%
      Code promo NEW YEAR
      Valable jusque
      31st Jan 2025

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      Les détails d'expédition

      Expédition:
      $30.00 14 les jours via Standard Shipping - Tracked
      Expédié depuis:
      Australia

      Options de paiement

      • stripe

      Aperçu

      Type d'inscription : Standard
      Identifiant du produit : 904839
      Départs : 29th January 2025 06:25 pm PST
      * Tous les prix sont en USD