What is this close-up picture? (WotsThat: Turquoise mineral)

Question

What object is shown in this zoomed-in close-up photo?

PollenDrift · Accepted Answer

Turquoise mineral. Turquoise is actually one of the few gemstones that can change color over time, sometimes turning greenish or losing its vibrant blue hue as it absorbs oils and moisture from your skin and the environment. Ancient Persians valued it so highly that they believed turquoise would shatter if its wearer was unfaithful, essentially using it as an early lie detector test.

Answer: Turquoise mineral

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