Lot of 3 pieces of coral

I found these three pieces of coral in a solidarity shop. I hesitated before buying them: I know (for having seen it with my own eyes) that coral is in poor health due to human activity (water sports, marine pollution, global warming etc.) and I didn't really want to endorse this by buying and selling coral which I do not know the provenance (i do not know if it was broken to be brought back as a souvenir or if it was found on the beach. Fyi, i've already found coral on the beach and it's rarely in this good condition). I bought it anyway, telling myself that I will finance, by selling it, an ecological project related to corals. When I heard about coral gardeners, I knew I had found the right structure. Coral gardeners retrieves the pieces of broken and still alive coral, attaches them to a piece of bamboo and then puts them on a board of "nursery" before relocating them to the coral reefs in tahiti. You can sponsor your broken piece of coral and relocate and you get a picture of that. It's a great project so I decided that the proceeds from the sale of these 3 pieces of coral would go entirely to this association. With 50, I will sponsor 2 pieces of coral and if you wish, I will send you pictures of this sponsorship. Coral a: 19 grams, 4x8.5x3. Coral b: 27 grams, 5x8x3. Coral c: 50 grams, 7x9x4.5.