AskHistorians/AskScience AMA Series: I am Dr. Michael Bycroft, and I just published a book on the history of gemstones in early modern science. Ask me anything from now until tomorrow morning.
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AskHistorians/AskScience AMA Series: I am Dr. Michael Bycroft, and I just published a book on the history of gemstones in early modern science. Ask me anything from now until tomorrow morning.