Basaltic-andesite
Specimen ID: NJW-9Y8
16.3cm x 9.6cm x 8.6cm
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Collected by:
Photo added to mindat.org
“Nearly intact "breadcrust bomb" of basaltic andesite. Caption of https://www.mindat.org/photo-1167763.html explains the mechanism of formation of breadcrust bombs. Collected on a Smithsonian Research Expedition to Arenál in 1989, 1991, 1992, or 1994. ”
Ed Clopton - 22nd September 2021
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