出典:Wikipedia
出典:『Wikipedia』 (2009/02/22 19:05 UTC 版)
Sovite (sövite) is the coarse grained variety or facies of a carbonatite intrusive. The finer grained variety is known as alvikite. The two varieties are distinguished by minor and trace element compositions. Sovite is often a medium to coarse grained calcite rock with variable accessory amphibole, biotite, pyrite, pyrochlore and fluorite.