Minerals and stones

Guinea Bissau 2003 Pravěká fauna a minerály

Guinea Bissau 2004 Minerály a nerosty Afriky

Guinea Bissau 2003 Minerály a nerosty Afriky

Guinea Bissau 2001 Africké minerály a nerosty II.

Guinea Bissau 2001 Africké minerály a nerosty I.

Burundi 2012 Minerály a nerosty Afriky

Angola 2018 Dinosauři a minerály, Pravěká fauna

Lesotho 1973 Geologický kongres, Minerály

Isle of Man 1980 Celtic stones and monuments

Saint Thomas 2014 Mi.5564-7+Bl.972 20€ Minerals, galena, torbenite

Comoros 2011 25€ Minerals and ores of Africa, rocks and gemstones

Comoros 2011 25€ Minerals and ores of Africa, rocks and gemstones

Comoros 2011 25€ Minerals and ores of Africa, rocks and gemstones

Comoros 2011 25€ Minerals and ores of Africa, rocks and gemstones

Niger 2016 Mi.4167-0+Bl.538 22€ Minerals and Rocks of Africa

Guinea Bissau 2015 Mi.8217-0+Bl.1426 27€ Minerals and mining in Africa

Guinea 2016 Mi.11906-9+Bl.2677 €32 Minerals and volcanoes, volcanology

Niger 2014 Mi.3002-5+Bl.344 €25 Minerals and volcanoes, volcanoes

Sierra Leone 2017 Minerals and Ores of Africa II.

Chad 2017 Minerals and Ores of Africa

Sierra Leone 2017 Minerals and Minerals of Africa

Central African Republic 2017 Nature of Africa: Minerals and Ores

Solomon Islands 2016 Minerals and ores Oceania