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      $450.00 USD
      Prix ​​de vente conseillé estimé $1,200.00

      152.20 CTS Natural Rhodochrosite Argentina Gem grade TBM-1718

      458
      0

      UGS
      tbm-1718
      Dimensions (mm)
      60.000 x 33.000 x 4.000mm
      Poids (cts)
      152.200
      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: ‎TrigonalMohs scale hardness‎: ‎3.5-4Crystal 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
      Australia
      Standard Shipping - Tracked bénéficie d'une remise de $25.00 sur les commandes contenant 2 ou plus d'articles
      Reste du monde
      Standard Shipping - Tracked bénéficie d'une remise de $30.00 sur les commandes contenant 2 ou plus d'articles
      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
      Reste du monde
      FedEx bénéficie d'une remise de $40.00 sur les commandes contenant 2 ou plus d'articles
      DHL $30.00 / 2 $30.00 / 21
      Reste du monde
      DHL bénéficie d'une remise de $30.00 sur les commandes contenant 2 ou plus d'articles

      152.20 CTS Natural Rhodochrosite Argentina Gem grade TBM-1718
      Qld, Australia
      Propriété de trueblueminerals

      • virginiemillefiori
        virginiemillefiori
        Négatif

        unfortunately the colors in person under artificial or natural light look nothing like the ones posted on the listing. The stone appears very dark blue and it is hard to guess it is a parti sapphire.

      • jadejarrah
        jadejarrah
        Positif

        Paid and shipped - no feedback left after 100 days

      10%
      Code promo vip discount
      Valable jusque
      1st Apr 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 : 2527439
      Départs : 1st March 2025 03:34 pm PST
      * Tous les prix sont en USD