Stone meteorite Holbrook - 0.055 grams

The Holbrook meteorite is a rare ordinary chondrite (L/LL6; S2; W0) that fell on July 19, 1912, in a spectacular meteor shower witnessed by many across several U.S. states. Thousands of fragments rained down near Holbrook, Arizona, with a total recovered weight exceeding 250 kg. The largest individual stone weighed 6.6 kg (14.5 lbs), while others were as small as a few milligrams.

Many Holbrook fragments feature a well-developed fusion crust, and their internal structure consists of chondrules (0.5–1.5 mm in diameter) made primarily of olivine and low-Ca orthopyroxene. These are embedded within a recrystallized matrix rich in olivine, pyroxene, Fe-Ni metal, and troilite aggregates, giving the meteorite its distinct composition.

Why is the Holbrook Meteorite Special?

✅ Type: Ordinary chondrite (L/LL6)
✅ Origin: Fell on July 19, 1912, Arizona, USA
✅ Weight: Over 250 kg total, ~14,000 recovered stones
✅ Geochemical rarity: One of only four witnessed L/LL6 falls ever recorded
✅ Certification: Each piece comes with a certificate of authenticity
✅ Meteorite weight: 0.055 grams

Holbrook is one of the most famous meteorites in the world, highly valued for its historical significance and scientific importance. Additional fragments have been discovered over the years, providing insights into the terrestrial weathering process of meteorites.

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