Aldermanite

Mg₅Al₁₂(PO₄)₈(OH)₂₂·32H₂O 

Aldermanite occurs as pearly white flakes, often coating colourless fluellite crystals. It has been recorded from four phosphate deposits and a limestone quarry in South Australia.

Selected Australian Occurrences:

• Moculta Phosphate Quarry (Type Locality), Angaston, South Australia.
• Penrice Marble Quarry, Angaston, South Australia.
• Saint John’s Quarry, Kapunda, South Australia.
• Tom’s Phosphate Quarry, Kapunda, South Australia.
• Fairview Quarry, Robertstown, South Australia.