Susannite
A variety of Minerals
What is Susannite?
Susannite is a lead sulfate carbonate hydroxide mineral. It has the formula Pb4SO4(CO3)2(OH)2. Susannite is the higher temperature phase of the two and forms above 80 °C when fluids oxidize the lead ore deposits. It is trimorphous with leadhillite and macphersonite. Susannite crystallizes in the trigonal system. It is quite soft with a Mohs hardness of 2.5 to 3.0 and a relatively high specific gravity of 6.57. It was discovered in 1827 in the Susannah Mine, Leadhills in the county of Lanark, Scotland. In addition to the type locality in Scotland, it has also been reported from various locations in Germany, the Tiger Mine in Pinal County, Arizona, from Iporanga, Sao Paulo, Brazil, and the Tsumeb mine of Namibia.
Market Value Factors
Pricing varies for every rock and mineral, so use these universal factors to gauge Susannite before comparing listings or appraisals.
Size & Weight
Larger, intact specimens usually command higher prices.
Rarity & Demand
Scarce material or popular varieties sell at a premium.
Condition & Finish
Chips, repairs, and heavy wear lower value; clean prep helps.
Treatment & Provenance
Untreated specimens with documented locality are prized.
Susannite Localities Map
See where Susannite is found with a localities map, collecting zones, and geology context. Generate a sample map preview below.
Quick Facts
Physical Properties
- Color
- Colourless to greenish or yellowish
- Hardness (Mohs)
- 2.5 - 3
- Density
- 6.52 g/cm³
Chemical Properties
- Chemical Formula
- Pb4(CO3)2(SO4)(OH)2
- Elements
- C, H, O, Pb, S
Identify Susannite Instantly
- Snap a photo, get instant results
- 6,700+ rocks, minerals & crystals
- Discover collecting spots near you
Susannite FAQs
How do I identify Susannite?
Susannite can be identified by its hardness of 2.5 - 3 on the Mohs scale, Colourless to greenish or yellowish color. Look for these key characteristics when examining specimens.
What color is Susannite?
Susannite typically appears in Colourless to greenish or yellowish. Color can vary depending on impurities and formation conditions.
How hard is Susannite?
Susannite has a hardness of 2.5 - 3 on the Mohs scale. This makes it a soft mineral that can be scratched easily.
%252FAbenakiite-(ce)-01.jpg&size=small)
