Labradorite
6–6.5Hardness (Mohs)
(Ca,Na)(Al,Si)₄O₈Chemistry
5Known origins & mines
Named for Labrador, Canada where missionaries recorded its blue-gold flash in 1770. Finland's spectrolite shows the fullest spectrum; Madagascar's Tulear coast supplies most lapidary rough. The "aurora borealis stone" of energy workers.
Known origins & mines
Nain Labrador Coast · Canada
Type locality where Moravian missionaries recorded the blue flash (1770); Inuit legends call it frozen aurora — coastal anorthosite bodies r…
Tulear Labradorite Coast · Madagascar
Madagascar supplies most world lapidary labradorite from Tulear-region anorthosite quarries — blue-gold slabs feed countertops and carvings …
Ylämaa Spectrolite Fields · Finland
WWII defense-line quarrying revealed spectrolite — Finnish labradorite flashing the full rainbow spectrum; Ylämaa hosts the world's only spe…