| Silica Formation | |
| Type: | Formation |
| Age: | Devonian |
| Period: | Devonian |
| Region: | Michigan and Ohio |
| Underlies: | Tenmile Creek Dolomite |
| Overlies: | Dundee Limestone |
The Silica Formation is a geologic formation in Michigan. It preserves fossils dating back to the Devonian period.