You efficiently tell your buddies that the lava is: mafic with low silica content.
The required details about mafic is mentioned in below paragraph.
A mafic mineral or rock is a silicate mineral or igneous rock wealthy in magnesium and iron. Most mafic minerals are darkish in color, and not unusualplace rock-forming mafic minerals encompass olivine, pyroxene, amphibole, and biotite. Common mafic rocks encompass basalt, diabase and gabbro.mafic rock, in geology, igneous rock this is ruled with the aid of using the silicates pyroxene, amphibole, olivine, and mica. These minerals are excessive in magnesium and ferric oxides, and their presence offers mafic rock its characteristic darkish colour. Mafic rock is generally contrasted with felsic rock, wherein light-colored minerals predominate. Common mafic rocks encompass basalt and its coarse-grained intrusive equivalent, gabbro.
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