Lamprophyllite

Data sheet

Locality

Koashva, Khibiny, Kola peninsula, Russia

Size category

Small cabinet

Size (cm)

6 x 4.5 x 4

Weight

142 g

Formula

(Na,Mn2+)3(Sr,Na)2(Ti,Fe3+)3(Si2O7)2O2(OH,O,F)2

Properties

Vitreous; dark brown; very shiny; bladed habit