The Cause: These are silicate minerals rich in iron, magnesium, and chromium. When they bloom inside the silica, they create the classic mossy, organic forest-green strands.Β
π‘ Yellow Inclusions
The Mineral:Goethite or Limonite.
The Cause: These are hydrated iron oxides (basically natural iron rust). When the iron content is heavily hydrated by water during formation, it shifts from red to a distinct mustard-yellow or bright ochre hue.
π΄ Red Inclusions
The Mineral:Hematite or Jasper filaments.
The Cause: This is caused by dehydrated iron oxide. When iron is exposed to less water or higher heat within the volcanic basalt matrix, it turns a deep brick-red or crimson.Β
