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7.60 Cts-Rhodhochrosite Cabochone TBG-4205 truebluegems

SKU
TBG-4205
Dimensions (mm)
14.000 x 14.000 x 5.000mm
Weight (cts)
7.600
Treatment
No Treatment
Shape
Round
Type
Cabochon
Colours

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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Rest of the world
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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 sale
Valid Until
31st Dec 2024

Audit

This product has been audited by a Gemstone Sheriff and they have found the following:
  • Description Accurate
  • Pictures Accurate

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.

This audit was requested 6 months ago
Last updated 6 months ago

Shipping Details

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

Payment Options

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Overview

Listing Type : Standard
Product ID : 2442029
Starts : 24th November 2024 05:08 pm PST
* All prices are in USD