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Oxammite

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SKY838335

Oxammite

Type Locality

Description Tabs

Description
Locality: 
Petrogale Cave, Madura Roadhouse, Dundas Shire, Western Australia, Australia
Class: 
Crystals on Matrix
Size Range: 
Thumbnail (1-3cm)
Size: 
1.6 × 1.3 × 1 cm
Description

Yellow orange microcrystals of the extremely rare ammonium oxalate mineral oxammite, from one of the only four localities known worldwide and associated to minoritary aphthitalite.

An organic mineral derived from guano; in sub-fossil bird eggs and on sub-fossil birds. In addition, it is one of the only 31 oxalates known as minerals from more than 5600 species known.

Don't miss the opportunity to get this extreme rarity almost never seen in the systematic mineral market !

Ex Vandenbroucke Museum collection from Waregem, Belgium.

Mineral Data
What's on the rock

Oxammite

Formula: 
(NH4)2(C2O4)·H2O
Strunz: 
10.AB.55
Hardness: 
2.5
Streak: 
White
Type Locality: 
Guañape Island, Virù, Trujillo Province, La Libertad Department, Peru

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