Polished Dumortierite Free Forms x 24 From Madagascar Floater one with a Crystalline Geode

one with a  Crystalline Geode centre with Dog Tooth Calcite white crystals

Atlantisite

with nice braided brown thong with a clasp

Size = 99 - 118  mm

but every other colour is also mined and far more regularly

Polished Dumortierite Free Forms x 24 From Madagascar Floater one with a Crystalline GeodeA NOTE FROM NICK A large flat of 24 polished high selected rare Dumortierite free forms with warm dark blue colour. This material is super rare I have only seen this twice in over 30 years. PRODUCT DESCRIPTION Dumortierite from Madagascar Dumortierite from Madagascar, a fibrous aluminum borosilicate mineral known for its blue hues, ranging from sky blue to deep sapphire, with occasional violet or green tinges. Sourced primarily from regions like the