Svanbergite specimens for sale
2 for sale · $210–$3,000 USD
12 in the gallery
Svanbergite is a phosphate-sulfate mineral that forms small to medium-sized crystals with a pale to yellow-green color and a glassy to resinous luster. It commonly occurs in granular or prismatic habits and can appear in single crystals or in aggregates that showcase their subtle sparkle under lighting. The mineral’s presence in hydrothermal or pegmatitic environments often associates it with aluminous phases, and its clear to pale specimens can fluoresce or show pale internal zoning under certain conditions.
- Formula
- SrAl3(PO4)(SO4)(OH)6
- Rarity
- Rare
- Stability
- Stable
- Collector interest
- Very High Interest
- Classification notes
- Phosphate-sulfate, alunite supergroup, crandallite subgroup
Key characteristics
- Crystal system
- trigonal
- Mohs hardness
- 5–5.5
- Specific gravity
- 3.15–3.26
- Luster
- vitreous, resinous, pearly
- Transparency
- transparent, translucent
- Color
- colorless, white, gray, yellow, brown, red
- Streak
- white
- Cleavage
- distinct
- Fracture
- uneven, conchoidal
- Crystal habit
- rhombohedral, tabular, prismatic, granular, massive
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Where Svanbergite is found
Top localities
- Brumado4 specimens
- Champion Mine2 specimens
- North Star mine2 specimens
- British Columbia1 specimen
About Svanbergite
Significant localities for svanbergite include Brazil, the United States, and Canada, where well-formed crystals have been collected from varied geological settings. Collectors prize svanbergite for its gentle color, relatively rare occurrence, and the way it fits into parageneses with phosphate and sulfate minerals. While not the most abundant specimen in mineral cabinets, svanbergite offers appealing crystal forms and a distinctive composition that highlights its unique phosphate-sulfate chemistry.