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Icelandite Mars Analog Mid-Atlantic Ridge
Icelandite Mars Analog, Mid-Atlantic Ridge, Rare Locality
Icelandite is a very specific sub-variety of andesite, a volcanic rock associated with basalt. This specimen was obtained near the mid-Atlantic ridge that runs through Iceland.
Icelandite was once described as being called the "closest thing on Earth to the rocks found at the (Mars) Pathfinder landing site".
It is a variety of intermediate volcanic rock containing phenocrysts of andesine, clinopyroxene and/or orthopyroxene and/or pigeonite and less commonly olivine in a groundmass of the same minerals. It differs chemically from a typical orogenic andesite in being poorer in alumina and richer in iron.
Specimen Size: 40mm H X 30mm W X 23mm D, Weight: 28.5 grams
Specimen ships in a perky see-thru container with information and tag. Stands and cube not included.