The association of albite-bearing silicolites, phyllite and limestone seems to be an important prospecting indicator.

含钠长硅质、千枚、灰是找矿评的重要标。

The zimenqiao Formation silicolites of Lower Carboniferous is the country rock of Changkeng Au-Ag deposit.

炭统梓门桥硅质是粤西长坑金银矿床的直接容矿。