6.5" Polished Maligano Jasper Slab - Indonesia

This is a Maligano jasper slab that has been cut and polished to a glossy finish. Maligano jasper is the trade name for a brecciated yellow, orange, red, grey, and blue-grey jasper found in Indonesia. Most of these specimens contain rivers of agate filling the gaps between the brecciated jasper. These specimens also often contain dendritic inclusions throughout.

Jasper is a term that can be applied to an opaque variety of chalcedony. The opaqueness is due to a higher concentration of impurities mixed with silica/quartz compared to other varieties of silica, such as quartz or agates. Like agate it may form in a wide variety of colors, and is often multi-colored. In most cases, jasper forms when silica-rich fluids permeate throughout a soft sediment or volcanic debris deposit. The fluids then crystallize around the particles/impurities, resulting in a cementation process. Most often, the impurities present determine the coloration of the deposit following solidification, but other factors can play a role in the color of what is now considered a jasper.
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DETAILS
SPECIES
Chalcedony var. Jasper/Agate
LOCATION
Indonesia
SIZE
6.5 x 3.3", .42" thick
CATEGORY
SUB CATEGORY
ITEM
#131379