Name:

strengite

A photo of the mineral 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
& Locals:

1.) Bendada Quarry, Belmonte, Biera Alta, Portugal
2.) Bendada Quarry, Belmonte, Biera Alta, Portugal

3.) Bendada Quarry, Belmonte, Biera Alta, Portugal

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