Thanks you two for your thoughtful mind expanding posts. Steve, I didn't know that conch pearls were harvested sustainably. I assumed they were like the P. margaritiferas that have been decimated where ever they existed. I guess the primary difference is that the shell of the black lips are so prized (for buttons and inlay) and conchs not so much. Not sure why haliotus pearls missed my thinking. Maybe too much diving related oxygen starvation to my brain. :P

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