Category Archives: zerene stacker

4x/0.25, A3550UPA CCD 5MP, carbonaceous, chondrite, polarized, scope2, wave retarder, zerene stacker

Sahara 99544 Meteorite Thin Section

Sahara 99544 Meteorite Thin Section

Sahara 99544

Thin section specimen of Sahara 99544 Meteorite seen in polarized light with a 1/4 wave retarder. Being a type CO3, there is an abundance of small diameter chondrules and olivine aggregates. In Norton’s The Cambridge Encyclopedia of Meteorites CO type chondrites are compared with CV type chondrites. Compare SAH 99544 with Allende, which is type CV. CO chondrules are on average 15% the size of CV chondrules. CO type specimens contain about half the volume percentage of CAIs when compared to the CV class.

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4x/0.25, A3550UPA CCD 5MP, breccia, chondrite, northwest africa, polarized, rumuruti, scope2, zerene stacker

NWA 5426 Meteorite Thin Section

NWA 5426 Meteorite Thin Section

NWA 5426 Meteorite Thin Section

Cross polarized thin section specimen of NWA 5426. There are two really amazing chondrules you should try to find while viewing the panoramas. NWA 5426 is a R Type Chondrite; “R” symbolizing the type specimen found in Rumuruti, Kenya. According to Norton’s The Cambridge Encyclopedia of Meteorites, these R Type Chondrites are mostly brecciated. In the case of NWA 5426, it is a polymict breccia. Of all the chondrites, R Type Chondrites contain the highest levels of iron oxidation.

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4x/0.25, A3550UPA CCD 5MP, chondrite, polarized, scope2, zerene stacker

Dhofar 535 Meteorite Thin Section

Meteorite Thin Section Dhofar 535

Dhofar 535

Thin section specimen of Dhofar 535 in cross polarized light. This meteorite has an incredible diversity of chondrules along with a beautiful array of colors. The meteorite is an ungrouped chondrite with numerous types of chondrules: Porphyritic Olivine-Pyroxene (POP), Porphyritic Olivine (PO), Barred Olivine (BO), Radial Pyroxene (RP), and Cryptocrystalline (CC). In addition, this meteorite is highly weathered (W5).

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