Banded rhodochrosite is mined in Capillitas, Argentina.
From the en.wikipedia.org
Catamarca, Argentina has an old Incan silver mine that has produced fine stalactitic examples of rhodochrosite that are unique and very attractive.
From the en.wikipedia.org
It forms two limited solid solution series, with substitution of manganese leading to rhodochrosite, and with iron, leading to siderite.
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A good example of isomorphism classification would be the calcite group, containing the minerals calcite, magnesite, siderite, rhodochrosite, and smithsonite.
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The finest specimens of tourmaline, rhodochrosite and crystallized gold are fetching more than $1 million apiece-about five times what they sold for five years ago, Heritage says.
From the forbes.com
Rhodochrosite occurs as a hydrothermal vein mineral along with other manganese minerals in low temperature ore deposits as in the silver mines of Romania where it was first found.
From the en.wikipedia.org
The Denver Museum of Nature and Science currently holds an aquamarine specimen valued at over one million dollars, as well as specimens of the state mineral, rhodochrosite.
From the en.wikipedia.org
More examples
A mineral consisting of manganese carbonate; a source of manganese
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. The streak is white. Its Mohs hardness varies between 3.5 and 4. Its specific gravity is 3.5 to 3. ...
Derives its pink color from Manganese. Rhodocrosite occurs in veins associated with Manganese, Copper, Silver, and lead deposits.
A carbonate mineral with the chemical formula of MnCO3
Rhodochrosite is a beautiful rose colored gemstone with dramatic bands of black and white. The gem has been called the "stone of love" as it is said to allow the wearer to create both internal and external worlds filled with love and dreams. ...
Rose or rose-brown colored often displays wonderful wavy bands of white. A carbonate mineral, gem quality rhodochrosite comes from Colorado and South Africa.
Rhodochrosite is a mineral whose color ranges from rose to pink to almost yellow or brown. Although it is very pretty, this stone is soft and brittle; it is used in jewelry and for carvings and figurines. Rhodochrosite is Manganese Carbonate; its chemical formula is MnCO3. ...