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云南老王寨金矿区煌斑岩中呈斑晶和基质产出的云母以金云母为主，少量富镁黑云母，环带结构发育。矿物化学表明本区云母的寄主岩石属碱性岩系列，岩石类型为钙碱性煌斑岩；同时提供了煌斑岩源于交代富集地幔和受地壳物质混染程度低等成因信息。云母多种多样的环带结构暗示其寄主的煌斑岩具复杂的岩浆结晶演化过程。
In the Laowangzhai gold deposit in Yunnan Province, the mica produced in the lamprophyres, which is characterized by phenocrysts and matrix, is dominated by phlogopite and has a small amount of magnesium-rich biotite. The structure of the zonation develops. Mineral chemistry indicates that the host rocks of the mica in this area are alkaline rocks and the rock type is calc-alkaline lamprophyre. At the same time, the lamprophyre is derived from the genesis information of enriched mantle and crustal contamination. The diversity of mica rings suggests that the host lamprophyre has a complex magmatic evolution.