Have a crossword puzzle

An element found in nature.

second letter a last letter l

seven letters total

To find the answer to your crossword puzzle clue, we can follow a few steps:

1. Start by identifying the given clues:
- The element is found in nature.
- The second letter is "a."
- The last letter is "l."
- The word has a total of seven letters.

2. Now let's search for elements in nature that fit the given criteria:
- Looking at the periodic table, we find several elements that could fit the description.

3. Considering the second letter is "a" and the last letter is "l," there are a few possibilities:
- "mineral" - This word satisfies all the given criteria, but it is not an element itself.
- "natural" - This word is not an element but meets the criteria.

4. Lastly, we need to look for a single element that matches the given criteria:
- After reviewing the periodic table, we find "Mineral" is indeed not an element.
- However, the element "Natural" does not exist.

Hence, based on the provided information, there doesn't appear to be a single seven-letter element found in nature that fits the given criteria. It is possible that the crossword puzzle may have an error or incomplete information.