What are some seven-letter minerals?

22 of the 153 minerals in Icillion have exactly 7 letters, for example Diamond, Calcite and Apatite.

Which seven-letter minerals start with C?

C is the most common first letter here, with 3 names, such as Calcite, Citrine and Cuprite.

Chemistry · lists

Stuck on a crossword or a word game? 22 minerals have exactly 7 letters, from “Apatite” to “Zoisite”.

22 of the 153 minerals have exactly 7 letters (14%).
Most start with C (3), A (2) and B (2).
Only names of one word are counted, and only their letters: spaces, hyphens and apostrophes are not.

What are some seven-letter minerals?: 22 of the 153 minerals in Icillion have exactly 7 letters, for example Diamond, Calcite and Apatite.
Which seven-letter minerals start with C?: C is the most common first letter here, with 3 names, such as Calcite, Citrine and Cuprite.

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Seven prompts a day, twenty seconds each. Obvious answers float on the tip of the iceberg; rare ones sink all the way to the trench.