Sylvite specimens for sale
2 for sale · $425–$1,100 USD
44 in the gallery
Sylvite is a halide mineral composed of potassium chloride (KCl). In hand specimens it forms vibrant, often tabular to blocky cubes with a vitreous to resinous luster and a crisp, light-reflecting surface. Habit ranges from granular masses to well-formed euhedral crystals, and it is commonly associated with other evaporite minerals such as halite and schoenfliesite in arid, evaporitic environments. Color can vary but bright orange to red-orange crystals are especially sought after, sometimes with a waxy or vitreous sheen that helps distinguish it from related salts.
- Formula
- KCl
- Rarity
- Common
- Stability
- Moderately Stable
- Collector interest
- High Interest
- Classification notes
- Halide; simple halide, halite group
Key characteristics
- Crystal system
- isometric
- Mohs hardness
- 2
- Specific gravity
- 1.99
- Luster
- vitreous
- Transparency
- transparent, translucent
- Color
- colorless, white, gray, yellow, orange, red, blue, violet
- Streak
- white
- Cleavage
- perfect
- Fracture
- uneven
- Crystal habit
- cubic, granular, massive
- Classic / historic
Buy Sylvite specimens
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Where Sylvite is found
Top localities
- 10th Ore Zone, Intrepid Potash East mine15 specimens
- Carlsbad Potash District3 specimens
- Kerr Mcgee Section 17 Mine2 specimens
- Intrepid Potash East Mine1 specimen
About Sylvite
Notable specimens come from classic evaporite localities around the world, with historic collections and modern finds contributing to Sylvite's reputation among mineral fans. Occurrences in the United States, Germany, and the United Kingdom are well documented, but Sylvite also appears in other salt-rich environments where evaporation concentrates potassium chloride. Collectors value Sylvite for its striking color, crisp crystal forms, and its role in understanding evaporite mineralogy and geochemical processes in saline deposits.