Produce vendors tend to give a free piece of fruit to regular customers when they make a purchase. Once we were given a very nice pomegranate. On a recent excursion to the piazza next to our apartment, we were given this. Neither of us had ever seen one before. So, we took it home, washed it, cut it in half and took a bite. The flavor was sort of like an apple kissed by an orange. The texture was sort of like chewing on soft wood.
When we described, it to a friend here, she told us it was a quince. They are not to be eaten raw, but cut into pieces and stewed. I guess we'll know for next time.