MINERALOGIA POLONICA

Volume 22 No2 1991

Abstracts

Authigenic K-feldspars from Gogolin limestones (Lower Muschelkalk) of the Cracow-Silesian region
MAREK MICHALIK
pp 3-9

Tourmaline from precambrian rock in Oued Damrane (North Algeria)
WIESŁAW HEFLIK
pp 11-20

Thermal decomposition of charoite
JANUSZ JANECZEK
pp 21-27

Minerals of the zone of altered Devonian dolomites from Dubie area near Krakow (Southern Poland)
ANNA LEWANDOWSKA
pp 29-38

Petrographic study of diabase and gabbro alterations in the basement of Carboniferous sediments in the "Nowa Ruda" mine, Lower Silesia
TADEUSZ KAPU¦CIŃSKI
pp 39-48

Organic matter in Zechstein Kupferschiefer from the Fore-Sudetic monocline (Poland) II. Kerogen
ZBIGNIEW SAWŁOWICZ
pp 49-68

Mineral composition and structure of crusts on dolomitic building materials in urban atmosphere in Krakow
WANDA WILCZYŃSKA-MICHALIK, MAREK MICHALIK
pp 69-78

¦wiat minerałów i kamieni ozdobnych- Kamieni szlachetne i ozdobne Madagaskaru
ANNA JACKOWSKA-POLEWCZAK
pp 79-87