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Ruby rough stone corundum 25-40mmRuby rough stone untreated
Ruby belongs to the corundum group
hexagonal ruby stone
Natural ruby or corundum
At the edge and partly in the stone the typical biotite deposits are visible, this is a certificate of authenticity
The outer crystal form, the hexagon is wonderful to see and touch.
Ruby / corundum as a mineral
Images of Ruby rough stone corundum 25-40mm
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