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7.60 Cts-Rhodhochrosite Cabochone TBG-4205 truebluegems

SKU
TBG-4205
Afmetingen (mm)
14.000 x 14.000 x 5.000mm
Gewicht (cts)
7.600
Treatment
No Treatment
Shape
Round
Type
Cabochon
Kleuren

TRADING AS LIGHTNINGOPALS LLC-TRUEBLUEOPALS AND GEMS

RHODHOCROSITE

Origin Argentina


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
:stad land
Geverifieerd
5055e feedback

  • bonusbloke
    bonusbloke
    Positief

    Small but perfectly formed! Arrived very quickly thanks.

  • jtgems
    jtgems
    Positief

    Very nice very tiny

  • ian2508
    ian2508
    Positief

    Paid and shipped - no feedback left after 100 days

  • smoky
    smoky
    Positief

    Paid and shipped - no feedback left after 100 days

  • smoky
    smoky
    Positief

    Paid and shipped - no feedback left after 100 days

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Geldig tot
30th Nov 2024

Audit

Dit product is gecontroleerd door een Gemstone Sheriff en zij hebben het volgende gevonden:
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Comments

The Verified Seller responsible for this item has diligently provided us with accurate and comprehensive information, encompassing crucial details such as weight, dimensions, and treatment. It is important to reiterate our commitment to upholding the highest standards of integrity and transparency in the gemstone industry. As part of our policy, we strictly permit the sale of exclusively natural gemstones that have been sourced directly from the Earth. However, in the event that a gemstone has undergone any form of treatment, it is mandatory for the seller to provide full disclosure regarding the treatment process. Furthermore, we would like to emphasize that man-made gemstones, including simulants and imitations, are strictly prohibited on our platform. We prioritize the promotion of authentic, natural gemstones to ensure a genuine and trustworthy marketplace for our valued customers. Should you have any further inquiries or require additional assistance, please do not hesitate to reach out. We are here to assist you and provide a seamless experience on Gem Rock Auctions.

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Verzendgegevens

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Betalingsmogelijkheden

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Overzicht

Vermeldingstype : Standard
Product-ID : 2442029
Begint : 10th November 2024 05:08 pm PST
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