Magmatic dikes

__NOTOC__ thumb|Runamo thumb|Some of the "runes" at Runamo upright=1.3|thumb|Jens Jacob Asmussen Worsaae's illustration of a part of the "inscription"Runamo is a cracked dolerite dike in Sweden that was for centuries held to be a runic inscription and gave rise to a famous scholarly controversy in the 19th century. It is located 2.7 km from the church of Bräkne-Hoby in Blekinge, in South-Sweden. For hundreds of years people said it was possible to read an inscription, and learned men referred to it.