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6.60 Cts-Rhodhochrosite Cabochone (2 PCS) TBG-4207 truebluegems

443
2

存貨單位
TBG-4207
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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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

  • sandyatayrshire2
    sandyatayrshire2
    積極的

    Paid and shipped - no feedback left after 100 days

  • sandyatayrshire2
    sandyatayrshire2
    積極的

    Paid and shipped - no feedback left after 100 days

  • ian2508
    ian2508
    積極的

    Paid and shipped - no feedback left after 100 days

40%
優惠券代碼 Gift
有效期至
31st Dec 2024

審計

Gemstone Sheriff計畫允許我們的會員要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 14透過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 : 2442031
開始 : 10th December 2024 05:18 pm PST
* 所有價格均以:貨幣為單位