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      $28.00 USD
      Estimated RRP $90.00

      7 Cts-Rhodhochrosite Cabochone (2 PCS) TBG-4220 truebluegems

      541
      1

      SKU
      TBG-4220
      Dimensions (mm)
      9.000 x 9.000 x 4.000mm
      Weight (cts)
      7.000
      Treatment
      No Treatment
      Shape
      Round
      Type
      Cabochon
      Colours

      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.

      Shipping provider Shipping to Australia Shipping to rest of world
      Standard Shipping - Tracked $15.00 / 7 days $30.00 / 14 days
      Australia
      Standard Shipping - Tracked is discounted to $18.00 on orders with 2 or more items
      Rest of the world
      Standard Shipping - Tracked is discounted to $30.00 on orders with 2 or more items
      FedEx $40.00 / 3 days $40.00 / 7 days
      Australia
      FedEx is discounted to $40.00 on orders with 2 or more items
      Rest of the world
      FedEx is discounted to $40.00 on orders with 2 or more items
      DHL $30.00 / 2 days $30.00 / 21 days
      Rest of the world
      DHL is discounted to $30.00 on orders with 2 or more items

      truebluegems
      truebluegems
      family business
      Mermaid Beach, Australia
      Verified
      5057 Feedback

      • bonusbloke
        bonusbloke
        Positive

        Small but perfectly formed! Arrived very quickly thanks.

      • jtgems
        jtgems
        Positive

        Very nice very tiny

      • sandyatayrshire2
        sandyatayrshire2
        Positive

        Paid and shipped - no feedback left after 100 days

      • sandyatayrshire2
        sandyatayrshire2
        Positive

        Paid and shipped - no feedback left after 100 days

      • ian2508
        ian2508
        Positive

        Paid and shipped - no feedback left after 100 days

      40%
      Coupon code NEW YEAR
      Valid Until
      31st Jan 2025

      Audit

      The Gemstone Sheriff program allows our members to request an audit on any product, which is completed by an independent Gemologist who assesses the accuracy of the item description and pictures.

      Shipping Details

      Shipping:
      $30.00 14 days via Standard Shipping - Tracked
      Ships from:
      Australia

      Payment Options

      • stripe

      Overview

      Listing Type : Standard
      Product ID : 2444571
      Starts : 26th December 2024 04:22 pm PST
      * All prices are in USD