Rockbridgeite
A variety of Rockbridgeite Group
Rare
What is Rockbridgeite?
Rockbridgeite is a dark green to black colored phosphate mineral with both iron (II) and iron (III) ions. It gets its name in 1949 from the place it discovered: Rockbridge County, Virginia, USA.
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Rockbridgeite Localities Map
See where Rockbridgeite is found with a localities map, collecting zones, and geology context. Generate a sample map preview below.
Map preview
North ZoneCentral RidgeSouth Basin
Quick Facts
Physical Properties
- Color
- Dark green, olive-green, brown, yellow-brown, greenish black, black
- Hardness (Mohs)
- 3.5 - 4.5
- Density
- 3.6 g/cm³
- Streak
- Gray green, pale brown
- Luster
- Greasy, Resinous, Silky, Waxy, Sub-vitreous
- Crystal System
- Orthorhombic
Chemical Properties
- Chemical Formula
- Fe2+Fe3+4(PO4)3(OH)5
- Elements
- Fe, H, O, P
Also Known As
RockbridgeiteMangan-Rockbridgeite
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