Atso Ilmari Vorma

1933

• Alkali feldspars of the Wiborg rapakivi massif in southeastern Finland
• Contribution to the mineralogy of rapakivi granites
• On the contact aureole of the Wiborg rapakivi granite massif in southeastern Finland
• On the petrochemistry of rapakivi granites with special reference to the Laitila massif, southwestern Finland
• On two roof pendants in the Wiborg rapakivi massif, southeastern Finland
• The crystal structure of stokesite, CaSnSi₃O₉.2H₂O