Can we get the Shell Seeker achievement by opening Oskayaat blue shells?

Question

Achievment "Shell Seeker" is obtained by finding 100 Giant Shimmering Pearls from opening large seashells. 

But in Oskayaat, during the day the shells look normal: 01:38:27 You see a large seashell. 

And during the night they transform into large turquoise seashells: 

So my question is if we can get the achievement Shell Seeker while opening the turquoise seashells? If possible, that could help to reduce the time for obtaining the achievement since in the past it was like a 20 hrs cooldown to open each large seashell; but with the turquoise ones the time would be extremely much less: according to this question How often can we open the large turquoise seashell in Oskayaat ? - TibiaQA the cooldown is only 10 minutes and also if you had opened the large seashell, then at night you can with no problem click the turquoise one as well.

Answer 1

The answer to this question interests me and intrigues me a lot at the same time. I found a post in a discord where a user (the Veld player from Kalibra) got the achievement in this way: opening a turquoise shell from Oskayaat. What intrigues me is that he didn't get a pearl but a shark fin and he got the achievement. Certainly good news for people who haven't gotten the achievement yet, but disappointing for all of us who spent months opening large shells every day (for me it was like more than a year, not everyday tho).

If this happens to be true and not a bug, then lets rethink the achievement description. 

Comments

I tried to use the shell after 10 minutes but got a message saying "You have already opened a shell today." I believe the 10 minute cooldown is for the next player to use the shell. I could however use a large turquoise shell and a large seashell which aren't on the same cooldown. So if the screenshot you shared is true and the large turquoise shells count towards the achievement, it would at most allow you to use 2 shells a day instead of 1.