Mika Voyatzi
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Porcelain by Ceramica by Mica Vogiatzi https://www.facebook.com/pages/Ceramica-by-Mica-Vogiatzi/143521065813098?ref=hl

Porcelain by Ceramica by Mica Vogiatzi…

Cave pearls in Vietnam

Cave pearls fill dried-out terrace pools in Hang Son Doong, Vietnam. The stone spheres formed drip by drip over the centuries as calcite crystals left behind by water, layered themselves around grains of sand, enlarging over time.

"The micro-structure of a scale from a butterfly wing. Moth and butterfly wings use pigments to make some colours but physical structures, that affect the behaviour of light itself, to make others. The holes are around 1 micrometre across, about the size of a bacterium. Scanning electron microscopy by Dr Bronwen Cribb, University of Queensland."

The micro-structure of a scale from a butterfly wing. The holes are around 1 micrometre across, about the size of a bacterium. Visualised using scanning electron microscopy by Dr Bronwen Cribb, University of Queensland.

Rare cave pearls fill dried-out terrace pools in Hang Son Doong, Vietnam. This unusually large collection of stone spheres formed drip by drip over the centuries as calcite crystals left behind by water layered themselves around grains of sand, enlarging over time.

Cave pearls fill dried-out terrace pools in Hang Son Doong, Vietnam. The stone spheres formed drip by drip over the centuries as calcite crystals left behind by water, layered themselves around grains of sand, enlarging over time.