White Howlite 13mm Faceted Clover - 15-16 Inch Inca Rose Wood Opalite is a type

Wood Opalite is a type of petrified wood that has been impregnated with the Silicon Dioxide commonly known as Opal

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Iolite most commonly occurs in shades of blue to gray

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White Howlite 13mm Faceted Clover - 15-16 Inch Inca Rose Wood Opalite is a typeWhite Howlite is named for Canadian mineralogist Henry How, who first discovered the stone in Southern California in 1868. It is typically white or light gray with gray, black or brown veins running through it in web to like patterns. Because of its softness, Howlite can be easily dyed and is often treated to be blue for use as a substitute for turquoise.