Mykkhul97 Posted March 29, 2020 Share Posted March 29, 2020 How did this petrified wood get these colors? Any idea what minerals caused the colors? I got this piece from an Idaho Auction. It was completely raw, untouched and dirty. I cut the top and sides to reveal an outstanding array if colors!!! After that, I cleaned the rest. You can see the grain clearly now. Thank you, enjoy!!! 1 Link to comment Share on other sites More sharing options...
digit Posted March 29, 2020 Share Posted March 29, 2020 From this website: https://www.desertusa.com/desert-prospecting/petrified-wood.html What makes petrified wood colorful? It's not wood that makes petrified wood colorful, but the chemistry of the petrifying groundwater. Minerals such as manganese, iron, and copper were in the water/mud during the petrification process. These minerals give petrified wood a variety of color ranges. Quartz crystals are colorless, but when iron is added to the process the crystals become stained with a yellow or red tint. Following is a list of minerals and related color hues: Copper - green/blue Cobalt - green/blue Chromium - green/blue Manganese - pink Carbon - black Iron Oxides - red, brown, yellow Manganese Oxides - black Silica - white, grey Cheers. -Ken 3 Link to comment Share on other sites More sharing options...
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