Felt (b) Meteorite Specimen Rare Official L3.5-5 Chondrite Oklahoma Meteorite Genomict Breccia

An authentic specimen of the extraordinarily rare Felt (b) meteorite, an officially classified ordinary chondrite discovered in Cimarron County, Oklahoma in 1990 or 1991. Felt (b) is highly significant within the meteorite collecting and scientific community because it remains the only approved meteorite classified as an L3.5-5 genomict breccia.

The meteorite was reportedly discovered by a farmer while plowing a grain field, with a total recovered mass of only 5.59 kilograms. Scientific examination revealed an exceptionally complex brecciated structure containing both primitive L3.5 material and more metamorphosed L5 material intermixed within the same meteorite — evidence of violent impact processes and asteroid regolith mixing early in solar system history.

Official Classification Notes

• Genomict breccia structure
• Approximately two-thirds L3.5 material
• Approximately one-third L5 material
• Abundant black melt veins
• Strong shock features
• Low weathering state W1
• Significant metal content (~9.3 vol%)

This combination makes Felt (b) scientifically fascinating because it preserves multiple stages of asteroid evolution and impact processing within a single meteorite.

Official Classification

• Name: Felt (b)
• Location: Cimarron County, Oklahoma, USA
• Year Found: 1990 or 1991
• Classification: Ordinary Chondrite (L3.5-5)
• Structure: Genomict Breccia
• Shock Stage: S4–S5
• Weathering Grade: W1
• Total Known Weight: 5.59 kg
• Official Publication: Meteoritical Bulletin 83

With only 5.59 kilograms total known and its unique classification status, Felt (b) material is exceptionally scarce and highly desirable among advanced meteorite collectors specializing in:

• Rare classified meteorites
• Brecciated chondrites
• Primitive ordinary chondrites
• American meteorites
• Scientific and research specimens
• Museum-quality planetary science collections

Depending on preparation, specimens may display:

• Black melt veins
• Metal-rich matrix
• Brecciated textures
• Primitive chondrule structures
• Shock-darkened features

A remarkable extraterrestrial artifact representing one of the most unusual classified ordinary chondrites known from the United States.

Specimen size: 32 × 23 × 5 mm | Weight: 9.17g | Provenance: Ex: Jensen, Ex: Mile High

Condition: Please review all photos carefully for overall condition, fusion crust, natural fractures, weathering, cut surfaces, and preparation characteristics, as they are considered part of the description. Meteorites are natural extraterrestrial objects and commonly display irregular surfaces, oxidation, and impact-related structural features.