Its gold mineralization is associated with an ultramafic lamprophyre pipe, which at supposedly 27 million years old was one of the last volcanic events to occur in the district.The gold in the Cresson deposit is generally less than 20 microns in size and occurs in three principal forms: native gold as embayments or replacements along the margins of pyrite grains, or even intergrown with pyrite; as native gold associated with hydrous iron and manganese oxides after tellurides; and as gold-silver tellurides primarily in quartz-fluorite veins.It takes millions of years for wood to become petrified.According to isotopic geological data reported by the National Park Service, trees in the Petrified Forest National Park in Arizona are between 211 and 218 million years old.Since it takes 5,568 years for an amount of 14 C to decay by 50 percent (half), if a specimen has one half the amount of 14 C as a modern piece of organic matter might have, we conclude it is about 5,568 years old.
The wood, sealed off from oxygen, interacts with mineral compounds, such as silica.
You then take a gallon of that diluted mixture and add another gallon of pure water to it 5,568 years later.
The concentration of blue dye is cut in half again.
Over millions of years the silica crystallizes within the cellular structure of the wood, at which point it is petrified.
Petrified wood often takes on the colors of the minerals that have solidified in its pores.