Rhodochrosite

MnCO3

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Rhodochrosite is a manganese carbonate (MnCO3) prized for its rose-red to pink color. It crystallizes in the trigonal system, forming rhombohedral crystals as well as massive, banded, and stalactitic aggregates, with a vitreous luster, a white streak, and perfect rhombohedral cleavage. Its Mohs hardness is 3.5 to 4 and its specific gravity 3.45 to 3.70. Banded rhodochrosite from Argentina is especially well known and serves as that country's national mineral, while superb crystallized specimens come from the Sweet Home Mine in Colorado. Its perfect rhombohedral cleavage and translucent vitreous crystals aid identification, and a Mohs hardness of 3.5 to 4 places it among the softer carbonates.

Rhodochrosite is a manganese carbonate mineral prized for its beautiful rose-red to pink color. Banded rhodochrosite from Argentina is particularly famous and is the national mineral of Argentina. Fine crystal specimens come from the Sweet Home Mine in Colorado.

النظام البلوري Trigonal
صنف المعدن 05 Carbonates and Nitrates
صلادة موس 3.5-4.0
الكثافة النوعية 3.45-3.70
اللون Rose-red, pink, brown, gray
اللمعان Vitreous
لون الخط White
الانفصام Perfect rhombohedral {1011}
الكسر Conchoidal to uneven
الشفافية Translucent
الشكل البلوري Rhombohedral, massive, banded, stalactitic

صلادة موس

Mohs Hardness: 3,5 – 4,0
1 Soft10 Hard
Rhodochrosite has a Mohs hardness of 3.5–4 on the 1–10 mineral hardness scale.
صلادة موس Reference Mineral
1 Talc
2 Gypsum
3 Calcite
4 Fluorite
5 Apatite
6 Orthoclase
7 Quartz
8 Topaz
9 Corundum
10 Diamond

النظام البلوري

Trigonal
Rhodochrosite crystallizes in the Trigonal crystal system.
الخاصية Value
النظام البلوري Trigonal (Rhombohedral)
Axial Relationships a = b = c, α = β = γ ≠ 90°

Frequently Asked Questions

What is the hardness of Rhodochrosite?
Rhodochrosite has a Mohs hardness of 3.5-4.0.
What crystal system does Rhodochrosite belong to?
Rhodochrosite crystallizes in the Trigonal crystal system.
What color is Rhodochrosite?
Rhodochrosite is typically Rose-red, pink, brown, gray.
What type of luster does Rhodochrosite have?
Rhodochrosite exhibits a Vitreous luster.
What is the chemical formula of Rhodochrosite?
The chemical formula of Rhodochrosite is MnCO3.