Freieslebenite specimens for sale
7 for sale · $1,500–$15,000 USD
6 in the gallery
Freieslebenite is a sulfide-sulfosalt mineral with the chemical formula AgPbSbS3. It forms as metallic, opaque crystals that typically exhibit a gray to black appearance with a bright lustre. The mineral crystallizes in the monoclinic system and often shows indistinct cleavage with a conchoidal fracture, adding to its robust nodule-like habit in zone-rich sulfide assemblages. Specimens commonly display a range of colors from white to gray and black, reflecting its mixed silver, lead, and antimony composition, and a relatively high specific gravity that helps distinguish it from nearby sulfides in hand specimens and thumbnails.
- Formula
- AgPbSbS3
- Rarity
- Rare
- Stability
- Stable
- Collector interest
- High Interest
- Classification notes
- Sulfides - Sulfosalts
Key characteristics
- Crystal system
- monoclinic
- Mohs hardness
- 2.5
- Specific gravity
- 6.2–6.4
- Luster
- metallic
- Transparency
- opaque
- Color
- white, gray, black
- Streak
- gray
- Cleavage
- indistinct
- Fracture
- conchoidal
- Crystal habit
- prismatic, acicular, granular, massive
- Classic / historic
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Where Freieslebenite is found
Top localities
- Himmelsfürst Mine2 specimens
- Braunsdorf1 specimen
About Freieslebenite
Notable sources are concentrated in Germany and Romania, where Freieslebenite occurs in hydrothermal veins and sulfide-rich deposits associated with other silver-bearing minerals. Collectors prize well-formed crystals and crusts that reveal the mineral’s metallic sheen and compact, sometimes tabular habit. The combination of its distinct color palette, metallic lustre, and localities with historical mining significance makes Freieslebenite a sought-after addition for those building a sulfide-focused collection, especially when paired with complementary sulfosalts and silver-rich specimens.