Howlite
The howlite
Cauliflower is not the image that jewelers usually make of raw gemstones! Howlite, on the other hand, is found in masses resembling cauliflowers that have the texture of unglazed porcelain. This snow-white stone is lined with black or dark gray spider web veins. Some samples may have little or no veins. Howlite is an opaque white or light gray porous stone, marked with black, gray or dark brown veins. It has no facets, but it is beautiful when it is cut into large shapes with curves (like globes, eggs or skulls), or cut in cabochon. The white (or undyed) howlite was sold under the trade names "white turquoise", "white buffalo turquoise" and "white buffalo stone". Howlite which has been dyed turquoise blue is sometimes sold under the brand name "turquenite".
Howlite is found not only in Nova Scotia, Newfoundland and New Brunswick (Canada), but also in Turkey, Mexico, Germeny, Russia and various locations in California.
Learn more about the Howlite: Wikipedia