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Struvite

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JYJ708051

Struvite

Description Tabs

Description
Locality: 
St Nikolai Church, Hamburg, Hamburg, Germany
Class: 
Massive/Crystalline
Size Range: 
Micromount (under 1cm)
Size: 
0.9 × 0.7 × 0.7 cm
Description

A encapsulated struvite crystal from an old german locality, that was extinguished a long time ago. 

There is no unified theory about the growth of these crystals, but medieval human feces and rotting cadavers were considered and might explain the high ammonium content. 

Comes with an old label, type locality. 

Mineral Data
What's on the rock

Struvite

Formula: 
(NH4)Mg(PO4)·6H2O
Group Parent: 
Struvite Group
Strunz: 
8.CH.40
Crystal System: 
Orthorhombic
Hardness: 
1.5 - 2.0
Streak: 
White
Type Locality: 
St Nikolai church, Hamburg, Germany