Mookaite slab C199 8 oz 4 x 4 1/2 x .31-.42 tapers in thickness lapidary Cabochons or Display
This slab has saw marks on one side. It is an outstanding slab of Mookaite for lapidary work and is thick enough so they will not affect the usefulness of the slab.
Photos are NOT enhanced!!! Material shown Wet and Dry under natural light.
Mookaite jasper, also known as mookite, mookalite, mookerite, moakite, moukalite and moukaite. However, mookaite is considered the correct spelling and is named after the local area it comes from, Mooka Creek in the Kennedy Ranges near Gascoyne Junction which is about 100 miles inland from the coastal town of Carnarvon in Western Australia.
Mookaite is found only in Australia and is actually a fossiliferous sedimentary rock & it is reasonably common to find cavities left by decomposed belemnite casts or in some rare cases , impressions of ammonites. (Windalia Radiolarite) Microscopic examination shows this rock consists of the remains of tiny organisms known as radiolaria that have an unusual skeletal structure of opaline silica. Billions of these little critters were deposited as sediment in the shallow areas of ancient sea beds. When the seas retreated, these sediments were cemented into solid rock by silica carried in groundwater. The type and degree of silicification varies from place to place, forming opalite, chert and chalcedony.
Display as is or cut and polish into beautiful cabochons for jewelry.
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