1) Phosphate mineral
Found on
https://www.crosswordclues.com/clue/allanpringite
Allanpringite is a phosphate mineral named after Australian mineralogist Allan Pring, South Australian Museum. Allanpringite is a Fe3+ analogue Al-phosphate mineral wavellite, but it has a different crystal symmetry – monoclinic instead of orthorhombic in wavellite. It forms needle-like crystals, which are always twinned and form parallel bundle...
Found on
http://en.wikipedia.org/wiki/Allanpringite
No exact match found.
