- analcite tinguaite
- анальцимовый тингуаит
English-Russian mining dictionary. В.П. Манышев.
analcite tinguaite
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Leucite — is a rock forming mineral composed of potassium and aluminium tectosilicate K [AlSi2O6] . Crystals have the form of cubic icositetrahedra but, as first observed by Sir David Brewster in 1821, they are not optically isotropic, and are therefore… … Wikipedia
