|
|
|
|
|
|
|
|
||
|
|
|||
|
|
|||
|
|
|
Name: |
strengite |
|
|||
|
Class: |
Phosphates/Arsenates/Vanadates |
||||
|
Chemistry: |
Fe(PO4) € 2 H2O |
||||
|
Color(s): |
colorless, white, yellow, pink, violet |
||||
|
Hardness: |
3-4 |
SpecGrav: |
2.87 |
||
|
Fracture: |
conchoidal |
Cleavage: |
perfect |
||
|
Crystal: |
Orthorhombic; tabular, radiating fibrous, and sometimes as crusts |
||||
|
Envronment: |
in phosphorus containing limonite, and phosphate pegmatites |
||||
|
Association: |
phosphosiderite, strunzite, beraunite, vabelite, vivianite |
||||
|
Locals: |
Germany / Portugal / Sweden / CA., Al., USA / |
||||
|
Misc: |
name after a German mineralogist, J. A. Streng (1830-1897). |
||||
|
Photos |
|||||
|
1.) Bendada Quarry, Belmonte, Biera Alta, Portugal |
|||||
|
|
|
|
|
|
|
|
|
|
