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19.5" Free-Standing, Polished Ocean Jasper (139.6 lbs) - Madagascar
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This is a massive, polished free standing freeform made of ocean jasper from the Ambolobozo Peninsula of Madagascar. Ocean jasper has a very unique character, as the patterns and colors are so different between them. The base of this piece has been cut flat, which allows it to display nicely without the use of a stand.
About Ocean Jasper
Ocean jasper is a rare type of silicified rhyolite (considered both an agate and a jasper), mined in a single location on the Ambolobozo Peninsula of northern Madagascar. The deposits are found on the coastline, hence the name, and can only be reached by boat and mined during low tide. The deposit formed as a rhyolite flow, but has been completely silicified. The rhyolitic eyes or orbs come in an astonishing array of colors and color combinations. The backgrounds can be white, pink, green, red, or yellow. Botryoidal formations as well as white and deep green druzy are also common.
Ocean jasper is a rare type of silicified rhyolite (considered both an agate and a jasper), mined in a single location on the Ambolobozo Peninsula of northern Madagascar. The deposits are found on the coastline, hence the name, and can only be reached by boat and mined during low tide. The deposit formed as a rhyolite flow, but has been completely silicified. The rhyolitic eyes or orbs come in an astonishing array of colors and color combinations. The backgrounds can be white, pink, green, red, or yellow. Botryoidal formations as well as white and deep green druzy are also common.
About Jasper
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.
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.
SPECIES
Chalcedony var. Ocean Jasper
LOCATION
Mine of Marovato, Madagascar
SIZE
19.5 x 14.5", weighs 139.6 lbs
CATEGORY
SUB CATEGORY
ITEM
#140964
