Mereheadite
A variety of Minerals
What is Mereheadite?
Mereheadite is a rare oxychloride that can be found with Mendipite at Merehead quarry, Cranmore, Somerset, in the United Kingdom. Most specimens are associated with calcite, mendipite or hydrous cerussite in the Manganese pods on vein two at torr works quarry (merehead quarry). This mineral is associated with symesite which is also light yellow to orange. Symesite is found in small blotches on the calcites or mendipites; Mereheadite does not, as it is most often found in veins.
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Mereheadite Localities Map
See where Mereheadite is found with a localities map, collecting zones, and geology context. Generate a sample map preview below.
Quick Facts
Physical Properties
- Color
- pale yellow to reddish-orange
- Hardness (Mohs)
- 3.5
- Density
- 7.31 g/cm³
- Streak
- White
Chemical Properties
- Chemical Formula
- Pb47Cl25(OH)13O24(CO3)(BO3)2 Formula originally assumed to be Pb2O(OH)Cl.
- Elements
- B, C, Cl, H, O, Pb

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