How do you identify siderite?
Siderite has Mohs hardness of 3.75-4.25, a specific gravity of 3.96, a white streak and a vitreous lustre or pearly luster. Siderite is antiferromagnetic below its Néel temperature of 37 K which can assist in its identification.
Where is siderite most commonly found?
siderite, also called chalybite, iron carbonate (FeCO3), a widespread mineral that is an ore of iron. The mineral commonly occurs in thin beds with shales, clay, or coal seams (as sedimentary deposits) and in hydrothermal metallic veins (as gangue, or waste rock).
What mineral class is siderite?
carbonates
Siderite belongs to the calcite group of minerals, a group of related carbonates that are isomorphous with one another. They are similar in many physical properties, and may partially or fully replace one another, forming a solid solution series.
What is the streak of siderite?
Physical Properties of SideriteHide Yellowish-brown to greyish-brown, pale yellow to tannish, grey, brown, green, red, black and, rarely, colourless; tarnished iridescent at times; colourless to yellow and yellow-brown in transmitted light.
What do you mean by siderite?
Siderite is a type of mineral that is composed of iron (II) carbonate (FeCO3). Its name comes from the Greek term “sideros” which means iron. It is an essential iron mineral, as it is composed of 48% iron without phosphorus or sulfur.
Is siderite a type of coal?
Siderite is not a type of coal. Siderite is a mineral composed of iron (II) carbonate (FeCO3). Anthracite, lignite and peat are the different kinds of coal.
In which state is siderite found in India?
Minette and riebeckite-kalisyenite dykes in some upper Cuddapah rocks, Kurnool District, Andhra Pradesh. Records of the Geological Survey of India, 94(2), 303-304.
What is a siderite?
Siderite is also the name of a type of iron meteorite. Siderite is a mineral composed of iron(II) carbonate (FeCO 3). It takes its name from the Greek word σίδηρος sideros, “iron”.
What is the specific gravity of siderite?
SIDERITE. It has a Mohs hardness of 3.5-4.0, perfect cleavage in three directions to form rhombohedrons, a vitreous-to-dull luster, a conchoidal fracture, and a specific gravity of 3.8-3.9. Siderite forms in a number of mineralogical environments, including sedimentary deposits, carbonatites, and hydrothermal veins.
Is siderite rare in veins?
Siderite is also rarely resent in some alpine type veins. In the hydrothermal veins, it is commonly associated with quartz, baryte, calcite and fluorite. Aesthetic combinations of siderite with sulfides like galena, sphalerite, chalcopyrite, tetrahedrite or arsenopyrite are highly valued by collectors.