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

Question

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

GarnetSweep · Accepted Answer

Malachite mineral surface. Malachite's gorgeous green stripes aren't just pretty to look at—they're actually a detailed record of how the mineral formed, with each band representing a different growth stage as copper-rich water slowly deposited layers over thousands of years. This means no two malachite pieces have identical striping patterns, making each one genuinely one-of-a-kind, kind of like nature's own fingerprints.

Answer: Malachite mineral surface

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