1) Plutonic rock
Found on
https://www.crosswordclues.com/clue/litchfieldite
Litchfieldite is a rare igneous rock. It is a variety of nepheline syenite and is composed of two near pure phases of feldspar, albite and microcline, with predominance of the first one, plus nepheline, sodalite, cancrinite and calcite. The mafic minerals, when present, are magnetite and an iron rich biotite (lepidomelane). ==Occurrence== The rock...
Found on
http://en.wikipedia.org/wiki/Litchfieldite
No exact match found.
