Ankerite
A variety of Dolomite Group
What is Ankerite?
Ankerite is a relatively common mineral usually occurring in translucent shades of browns, greys, yellows, and greens. This mineral is very similar to dolomite but has iron (III) and manganese instead of magnesium. Because of this, it is usually found in iron-containing rocks as well as carbonate-rich alkaline rocks.
Uses & Applications
Ankerite is used as a source of iron in some areas, though this use is limited due to its rarity. Iron has a very wide range of uses including buildings, surgical instruments, pipes, bridges, and tools.
Ankerite Market Value Calculator
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Ankerite Localities Map
See where Ankerite is found with a localities map, collecting zones, and geology context. Generate a sample map preview below.
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Quick Facts
Physical Properties
- Color
- Brown, white to grey, yellowish-brown, tan, fawn, greenish
- Hardness (Mohs)
- 3.5 - 4
- Density
- 3.11 g/cm³
- Streak
- White
- Luster
- Pearly
- Crystal System
- Trigonal
Chemical Properties
- Chemical Formula
- Ca(Fe2+,Mg)(CO3)2
- Elements
- C, Ca, Fe, Mg, O
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