1 kg of Tumbled Green Common Opal - Medium Large Responsibly sourced and geologist-certified, our tumbled Green Common Opal stones are selected for their soft, luminous hues and soothing energy. Each piece has been authenticated through the Geoworld Geo-paleontological laboratory in Italy under the supervision of esteemed geologist, Dr. Stefano Piccini. Origin: Madagascar Chakra: 4th (Love), 5th (Communication), 6th (Conscience) Zodiac: Cancer, Pisces, Libra, Virgo Green Common Opal, also known as Prase Opal or Andean Opal, is a gentle yet profound gemstone, cherished for its calming green tones and smooth, waxy finish. Unlike precious opal, it does not display iridescent play-of-color, but instead radiates a quiet, serene glow. Formed through the interplay of silica, water, and trace elements, it carries a soft energy that nurtures both heart and spirit. Images are approximations; product varies naturally in size, shape, and color.