labradorisieren, labradorescence
labradorisieren das farbenspiel von labradorit feldspat. das phänomen entsteht durch interferenz von leicht phasenverschobenem licht bei reflektion an dünnen schichten. vergleichbar mit dem farbenspiel eines dünnen ölfilms auf wasser.
lagenstein ein aus zwei unterschiedlich gefärbten achaten bestehender, heute meist gebeizter stein. wird als siegelstein für edelsteingravuren verwendet
www.edelsteine.atlabradorisieren, labradorescence
labradorescence the play of colour seen in labradorite feldspar. the phenomenon is caused by interference of very slightly out-of-phase light due to reflection from thin surfaces. comparable to the colours seen on a film of oil on a water puddle.
layered stone consisting of two differently coloured layers of agate. as naturally layered stones are extremely rared most layered stones are dyed. used as seal stones for gemstone engravings
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