Dawsonite specimens for sale
2 for sale · $150–$450 USD
4 in the gallery
Dawsonite is a carbonate mineral with the chemical composition NaAl(CO3)(OH)2. It typically forms colorless to white crystals that are often delicate and acicular or radiating in habit, sometimes displaying a silky luster in reflected light. The mineral crystallizes in the orthorhombic system and is known for a white streak and relatively low hardness, around Mohs 3, with a specific gravity in the 2.4 range.
- Formula
- NaAl(CO3)(OH)2
- Rarity
- Uncommon
- Stability
- Stable
- Collector interest
- Moderate Interest
- Classification notes
- 16a.03.08.01 (16a) Carbonates - Hydroxyl or Halogen
Key characteristics
- Crystal system
- orthorhombic
- Mohs hardness
- 3
- Specific gravity
- 2.4–2.44
- Luster
- vitreous, silky
- Transparency
- transparent
- Color
- colorless, white
- Streak
- white
- Cleavage
- perfect
- Fracture
- uneven
- Crystal habit
- acicular, radiating
Buy Dawsonite specimens
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Where Dawsonite is found
Top localities
- Francon quarry3 specimens
- Mont Saint-Hilaire2 specimens
About Dawsonite
Notable occurrences of Dawsonite are primarily reported from Canada, where crystals can be collected under appropriate environmental conditions that favor its formation in carbonate-rich settings. Specimens are valued for their slender, needle-like crystals and the subtle elegance of their overall habit, which can contrast well against darker matrix material. Collectors appreciate Dawsonite for its delicate forms and its assemblage potential with other carbonate and hydroxide minerals, as well as the way its transparent to white crystals interact with light. Its perfect cleavage requires careful handling, but well-prepared pieces can display a quiet, understated beauty on display.