Dolomite

Main Elements:

Ca, Mg, C, O

Chemical Composition:

CaMg(CO₃)₂ (Calcium Magnesium Carbonate)

Density:

2.8-2.9 g/cm³

Compressive Strength:

50-250 MPa

Melting Point:

Decomposes at 800-900°C

Formation:

Forms from limestone through dolomitization, where magnesium replaces some calcium in the presence of magnesium-rich water.

Composition:

Composed primarily of the mineral dolomite (CaMg(CO₃)₂), which is harder than calcite.

Types:

• Crystalline Dolomite
• Dolomitic Limestone
• Dolomite Marble

Etymology:

Named after the French geologist Déodat Gratet de Dolomieu, who first described the mineral.

Uses:

• Construction
• Magnesium source
• Steel manufacturing
• Glass making
• Decorative stone

Distribution:

Found worldwide, especially in ancient marine environments

Historical Use:

Used in construction for thousands of years. The Dolomite Mountains in Italy are famous for their dolomite formations.

Symbolism:

Represents transformation and Earth's chemical processes

What is the difference between dolomite and limestone?

Dolomite contains magnesium (CaMg(CO₃)₂), while limestone is pure calcium carbonate (CaCO₃). Dolomite is harder and reacts less vigorously with acid.

Where is dolomite found?

Dolomite is found worldwide in ancient marine environments, especially in the Dolomite Mountains of Italy.