reÂ·ticÂ·uÂ·late. adj. 1. Resembling or forming a net or network: reticulate veins of a leaf. 2. Relating to or being an evolutionary process that involves the exchange of genes between organisms of different species, as in the formation of a new species through hybridization.
Egypt is rich in building and decorative stone, copper and lead ores, gold, and semiprecious stones. These natural resources allowed the ancient Egyptians to build monuments, sculpt statues, make tools, and fashion jewelry. Embalmers used salts from the Wadi Natrun for mummification, which also provided the gypsum needed to make plaster.
A variety of onyx that is reddish brown with white and lighter reddish bands is known as sardonyx. A 6.5 on the Mohs scale of hardness., onyx is a very good stone for use in carving. Most Black Onyx that is commercially available today is color enhanced (heated and dyed) to increase it's depth of color. variety of onyx that is reddish brown with white and lighter reddish bands is known as sardonyx. A 6.5 on the Mohs scale of hardness., onyx is a very good stone for use in carving. Most Black Onyx that is commercially available today is color enhanced (heated and dyed) to increase it's depth of color.