This is a Top Quality of petrified wood (Araucaria) from Ambilobe, Madagascar. Araucaria is a coniferous tree in the family that includes the modern Monkey Puzzle tree. Beautiful petrified wood slab from Madagascar, showing warm natural tones ranging from pink and deep red to soft Havana brown. This piece represents a solid section of fossilized wood, cut to reveal the internal structure and polished on one face to enhance the color and texture, while the opposite side remains natural. Details: Material: Petrified wood Origin: Madagascar Finish: One side polished, one side natural Dimensions: 13 × 8 × 8.5 cm Thickness: 8.5 cm (massive section, not a thin slice) Colors: Pink, red and Havana shades Condition: Good, natural fossil specimen The polished surface highlights the fossilized cellular structure and mineralization, making this an attractive decorative and collectible specimen, ideal for display in a mineral or fossil collection. Very heavy. NOTE the specimen is glued. Note: The photos are taken with a professional light box to highlight details and textures. Please note that slight variations in color and appearance may occur due to different lighting and screen settings. Petrified wood is the name given to wood that has been turned into stone (fossilized) through the process of permineralization. All of the organic matter becomes replaced by minerals, while much of the original structure such as tree rings in retained. For this to happen the wood needs to be buried in an environment both low in oxygen (preventing decomposition) and with flowing, mineral-laden water. The coloration is due to the various minerals that are present during fossilization. For example red colors are due to iron compounds, greens due to copper, etc.