Polished Dumortierite Free Forms x 12 From Madagascar MUSEUM PIECE Size = 235 x 130

Size = 235 x 130 x 121 mm

Size = 141 x 102 x 81 mm

which are opaque

Some pieces show banded colour distribution else inclusive exposures or classic brecciation

Quartz from Zambia showcase a beautiful range of natural hues

Polished Dumortierite Free Forms x 12 From Madagascar MUSEUM PIECE Size = 235 x 130A NOTE FROM NICK A tray of 12 beautifully polished highly 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