Natron
A variety of Minerals
What is Natron?
Natron is a naturally occurring mixture of sodium carbonate decahydrate (Na2CO3·10H2O, a kind of soda ash) and around 17% sodium bicarbonate (also called baking soda, NaHCO3) along with small quantities of sodium chloride and sodium sulfate. Natron is white to colourless when pure, varying to gray or yellow with impurities. Natron deposits are sometimes found in saline lake beds which arose in arid environments. Throughout history natron has had many practical applications that continue today in the wide range of modern uses of its constituent mineral components. In modern mineralogy the term natron has come to mean only the sodium carbonate decahydrate (hydrated soda ash) that makes up most of the historical salt.
Etymology & Origins
The English and German word natron is a French cognate derived from the Spanish natrón through Latin natrium and Greek nitron (νίτρον). This derives from the Ancient Egyptian word nṯrj. Natron refers to Wadi El Natrun or Natron Valley in Egypt, from which natron was mined by the ancient Egyptians for use in burial rites. The modern chemical symbol for sodium, Na, is an abbreviation of that element's New Latin name natrium, which was derived from natron.
Market Value Factors
Pricing varies for every rock and mineral, so use these universal factors to gauge Natron 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.
Natron Localities Map
See where Natron is found with a localities map, collecting zones, and geology context. Generate a sample map preview below.
Quick Facts
Physical Properties
- Color
- Colourless to white, greyish, yellowish; colourless in transmitted light.
- Hardness (Mohs)
- 1 - 1.5
- Density
- 1.478 g/cm³
Chemical Properties
- Chemical Formula
- Na2CO3 · 10H2O
- Elements
- C, H, Na, O
Also Known As
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Natron FAQs
How do I identify Natron?
Natron can be identified by its hardness of 1 - 1.5 on the Mohs scale, Colourless to white color. Look for these key characteristics when examining specimens.
What color is Natron?
Natron typically appears in Colourless to white, greyish, yellowish; colourless in transmitted light.. Color can vary depending on impurities and formation conditions.
How hard is Natron?
Natron has a hardness of 1 - 1.5 on the Mohs scale. This makes it a soft mineral that can be scratched easily.
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