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$26.00 USD
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362
1

6.60 Cts-Rhodhochrosite Cabochone (2 PCS) TBG-4208 truebluegems

存貨單位
TBG-4208
尺寸(毫米)
9.000 x 9.000 x 4.000mm
重量 (cts)
6.600
Treatment
No Treatment
Shape
Round
類型
Cabochon
顏色

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.

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Standard Shipping - Tracked $15.00 / :幾天天 $30.00 / :幾天天
:國家
Standard Shipping - Tracked 對包含 2 或更多商品的訂單折扣為 $18.00
世界其他地區
Standard Shipping - Tracked 對包含 2 或更多商品的訂單折扣為 $30.00
FedEx $40.00 / :幾天天 $40.00 / :幾天天
:國家
FedEx 對包含 2 或更多商品的訂單折扣為 $40.00
世界其他地區
FedEx 對包含 2 或更多商品的訂單折扣為 $40.00
DHL $30.00 / :幾天天 $30.00 / :幾天天
世界其他地區
DHL 對包含 2 或更多商品的訂單折扣為 $30.00

truebluegems
truebluegems
family business
:城市,國家
已驗證
:總反饋

  • bonusbloke
    bonusbloke
    積極的

    Small but perfectly formed! Arrived very quickly thanks.

  • jtgems
    jtgems
    積極的

    Very nice very tiny

  • oh-pill-doode
    oh-pill-doode
    積極的

    Paid and shipped - no feedback left after 100 days

  • adrianrl
    adrianrl
    積極的

    The stone was more beautiful in person than in the picture.

  • luckygreen317
    luckygreen317
    積極的

    Paid and shipped - no feedback left after 100 days

40%
優惠券代碼 thanksgiving
有效期至
30th Nov 2024

審計

Gemstone Sheriff計劃允許我們的會員請求對任何產品進行審核,該審核由獨立的 Gemologist 人員完成,該資格人員評估商品描述和圖片的準確性。

送貨細節

船運:
$30.00 :通過 Standard Shipping - Tracked 計算天數
發貨自:
Australia

付款方式

  • stripe

概述

列表類型 : Standard
產品編號 : 2442032
開始 : 30th October 2024 06:21 pm PDT
* 所有價格均以:貨幣為單位