Clue | Length | Answer |
---|---|---|
Quartz rock | 5 letters | chert |
Compact mineral | 5 letters | chert |
Rock-like flint | 5 letters | chert |
Fine-grained rock | 5 letters | chert |
Quartz | 5 letters | chert |
type of rock that siliceous novaculite is, as found in the marathon uplift area of texas | 5 letters | chert |
Siliceous rock often occurring as flint nodules in chalk | 5 letters | chert |
Flintlike rock | 5 letters | chert |
A compact rock consisting essentially of microcrystalline quartz | 5 letters | chert |