Dawsonite
A variety of Minerals
What is Dawsonite?
Dawsonite is a mineral composed of sodium aluminium carbonate hydroxide, chemical formula NaAlCO3(OH)2. It crystallizes in the orthorhombic crystal system. It is not mined for ore. It was discovered in 1874 during the construction of the Redpath Museum in a feldspathic dike on the campus of McGill University on the Island of Montreal, Canada. It is named after geologist Sir John William Dawson (1820–1899). The type material is preserved in the collection of the Redpath Museum.
Dawsonite Market Value Calculator
Estimate the market value of Dawsonite using size, quality, and finish. This preview calculator is for quick context and is not a formal appraisal.
Dawsonite Localities Map
See where Dawsonite 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; rarely pink; colourless in transmitted light
- Hardness (Mohs)
- 3
- Density
- 2.431 g/cm³
- Streak
- White
Chemical Properties
- Chemical Formula
- NaAlCO3(OH)2
- Elements
- Al, C, H, Na, O
Identify Dawsonite Instantly
- Snap a photo, get instant results
- 6,700+ rocks, minerals & crystals
- Discover collecting spots near you
%252FAbenakiite-(ce)-01.jpg&size=small)
