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I left this question unanswered: CortezPearls commented 08-30-2021, 11:09 AM Weren't some of the oysters the ones that were hatchery produced? No, the hatchery group will be harvested in 2022. It will be very interesting to see those pearls.

And this other pearl Pen-shell pearl is The Globe. Another collectible, if only for the shape.

Pen shell pearls are not as highly regarded here because the nacre is prone to cracks and because they are usually formed by lots of protein, the periostrach, and little nacre. This one is the Pawn, fifteen more pieces and I will have my whole "black" set.

Enrique shared is a Spondylus calcifer Yes, Douglas is right, family SPONDYLIDAE. In the Sea of Cortez they are known as Escarlopa or Almeja Burra.

Is that you Enrique? I have the same photos that you are posting Sii, soy yo, voy a compartir otras fotos muy simpáticas de dos perlas naturales de callo de hacha.

That these two harvests (2020 and 2021) were going to be good was clear since 2017. You realize that when you see the size of juveniles, they were bigger and spikier than other groups at the same age. I would like to think that pearl oyster care that we give has improved and that we will have...

Here are the ten pearls in one picture where they are shown at proportional size:

Ok, I need to learn to include images... If you see at the center there is a big mound, that is like a natural half-pearl or blister-pearl, that rock oyster was defending itself from an intruder. Now, let me share a picture from our good friend Edgar of a pearl from this species which has...

Here we have another species that can make a non-traditional (non-nacreous) pearl: it is the Purple-lip Rock Oyster. The pearl could come out white, like the center of the shell and it would have no monetary value, but if it is purple like the edge then the pearl starts to be a valuable one.

The shell is a Veneridae, Periglypta multicostata The shell is a Veneridae, Periglypta multicostata