$275Median
1Sold (12 mo)
$275Last sale
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Carletonite specimens for sale
3 for sale · $200–$5,000 USD
27 in the gallery
Carletonite is a rare silicate mineral with a complex carbonate component. It forms in vesicles and cavities within alkaline igneous rocks and is known for its distinctive orange to pink hues and glassy to pearly luster. Crystals often display a prismatic habit with sharp terminations, and the overall appearance can be described as colorful and striking against rock matrix.
- Formula
- KNa4Ca4Si8O18(CO3)4(OH,F) · H2O
- Rarity
- Ultra Rare
- Stability
- Stable
- Collector interest
- Very High Interest
- Classification notes
- Silicate, phyllosilicate; carletonite group
Key characteristics
- Crystal system
- tetragonal
- Mohs hardness
- 4–4.5
- Specific gravity
- 2.42–2.45
- Luster
- vitreous, pearly
- Transparency
- transparent, translucent
- Color
- blue, colorless, white, pink
- Streak
- white
- Cleavage
- perfect
- Fracture
- uneven
- Crystal habit
- prismatic, tabular, massive
- Gem mineral
- Classic / historic
Buy Carletonite specimens
View all 3Where Carletonite is found
Top localities
- Poudrette Quarry15 specimens
- Mont Saint-Hilaire4 specimens
- Carrière Poudrette2 specimens
About Carletonite
Notable specimens have come from Canada, where late-stage hydrothermal activity and unique alkalic assemblages create the conditions for carletonite’s growth. Collectors prize it for its rarity, vivid coloration, and the way it stands out in hand specimens or small cabinets. Because of its fragile nature and complex chemistry, high-quality, well-preserved crystals are sought after by those specializing in carbonate- and phosphate-bearing minerals as an unusual and eye-catching addition to a collection.
