Dolomite
A variety of Dolomite Group
What is Dolomite?
Dolomite, also known as Dolostone, is not to be confused with the mineral of the same name; it is merely a sedimentary carbonate rock that contains this mineral. It is said to resemble limestone and was not distinguished from the former until 1778. It is a common reservoir material for oil and natural gas.
Etymology & Origins
The term dolostone was introduced in 1948 to avoid confusion with the mineral dolomite. The usage of the term dolostone is controversial because the name dolomite was first applied to the rock during the late 18th century and thus has technical precedence. The use of the term dolostone was not recommended by the Glossary of Geology published by the American Geological Institute.
Uses & Applications
Because of its abundance, hardness, and resistance to acids, dolomite is largely used in construction in the forms of aggregate, blocks, and slabs. It is kiln-fired in the production of cement and calcined to produce lime. Dolomite is also used as a soil conditioner and additive in livestock feed, as an industrial source of magnesia (MgO), and in iron and steel industry.
Healing Properties
Dolomite is thought to provide emotional healing and helps to release negative energy. It offers positive energy in return to restore hope and allow one to regain optimism for their life purpose. It is believed to be beneficial for building strength and stamina and is often used to assist in the healing of the body.
Optical Properties
- Refractive Index
- 1.498-1.681
- Birefringence
- 0.179-0.181
- Pleochroism
- None
- Optical Character
- Uniaxial negative
Market Value Factors
Pricing varies for every rock and mineral, so use these universal factors to gauge Dolomite before comparing listings or appraisals.
Size & Weight
Larger, intact specimens usually command higher prices.
Rarity & Demand
Scarce material or popular varieties sell at a premium.
Condition & Finish
Chips, repairs, and heavy wear lower value; clean prep helps.
Treatment & Provenance
Untreated specimens with documented locality are prized.
Dolomite Localities Map
See where Dolomite is found with a localities map, collecting zones, and geology context. Generate a sample map preview below.
Associated Chakras
Quick Facts
Physical Properties
- Color
- Colourless, white, gray, reddish-white, brownish-white, pink, colourless in transmitted light
- Hardness (Mohs)
- 3.5 - 4
- Density
- 2.84 - 2.86 g/cm³
- Streak
- White
- Luster
- Pearly, Vitreous, Resinous, Waxy, Sub-vitreous
- Crystal System
- Trigonal
Chemical Properties
- Chemical Formula
- CaMg(CO3)2
- Elements
- C, Ca, Mg, O
Also Known As
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Dolomite FAQs
How do I identify Dolomite?
Dolomite can be identified by its hardness of 3.5 - 4 on the Mohs scale, Colourless color, Pearly, Vitreous, Resinous, Waxy, Sub-vitreous luster, Trigonal crystal system. Look for these key characteristics when examining specimens.
What color is Dolomite?
Dolomite typically appears in Colourless, white, gray, reddish-white, brownish-white, pink, colourless in transmitted light. Color can vary depending on impurities and formation conditions.
How hard is Dolomite?
Dolomite has a hardness of 3.5 - 4 on the Mohs scale. This gives it moderate hardness.
