Quartz-filled rock

Unlocking the Cryptic: “Quartz-filled Rock”

Hey crossword enthusiasts! This week’s cryptic clue has us digging deep into the world of geology. It’s a classic “what am I?” question, and the answer isn’t a simple rock, but something with a specific composition.

The clue hinges on the phrase “quartz-filled.” This tells us the rock in question has a significant amount of quartz within its structure. But what kind of rock would have such a prominent quartz component?

We’ll explore some common geological terms and see if they fit the bill. Think about the different types of rocks – igneous, sedimentary, and metamorphic. Could the clue be referring to a particular formation within one of these categories?

Remember, crossword clues are often designed to be tricky. They might use synonyms, wordplay, or even misleading information. So, put on your thinking cap and let’s crack this clue together!

Let’s delve into the geological possibilities:

Igneous rocks

form from the cooling and solidification of magma or lava. Could a specific type of igneous rock be rich in quartz?

Sedimentary rocks

are formed from the accumulation and cementation of sediments. Would a particular sedimentary rock type fit the description of being “quartz-filled”?

Metamorphic rocks

are formed when existing rocks are transformed by heat, pressure, or chemical reactions. Could this process lead to the formation of a quartz-rich rock?

Stay tuned as we unravel this geological mystery and discover the answer to this intriguing crossword clue!

Available Answers:

GEODE.

Last seen on the crossword puzzle: NY Times Crossword 18 Jul 24, Thursday