Minerals can be described by various physical properties which relate to their chemical structure and composition. Common distinguishing characteristics include crystal structure and habit, hardness, lustre, diaphaneity, colour, streak, tenacity, cleavage, fracture, parting, and specific gravity. More specific tests for minerals include magnetism, taste or smell, radioactivity and reaction to acid.
The revolutions of 1848â49 in the German states, the opening phase of which was also called the March Revolution (German: Maerzrevolution), mÃ¤rzrevolution were initially part of The revolutions of 1848 that broke out in Many european. countrieshe revolutions spread across Europe; they erupted in Austria and Germany, beginning with the large demonstrations on March 13, 1848, in Vienna. This resulted in the resignation of Prince von Metternich as chief minister to Emperor Ferdinand I of Austria, and his going into exile in Britain.
The East German regime started to falter in May 1989, when the removal of Hungary's border fence opened a hole in the Iron Curtain. It caused an exodus of thousands of East Germans fleeing to West Germany and Austria via Hungary.The Peaceful Revolution, a series of protests by East Germans, led to the GDR's first free elections on 18 March 1990, and to the negotiations between the GDR and FRG that culminated in a Unification Treaty.he East German regime started to falter in May 1989, when the removal of Hungary's border fence opened a hole in the Iron Curtain. It caused an exodus of thousands of East Germans fleeing to West Germany and Austria via Hungary.