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Thin Sections
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84.3 gram end-cut. 76 x 49 x 18 mm. Ureilite TKW 3.89 kg. Purchased June 2016, St.Marie aux Mines, France. Dirk writes:I bought this interesting end-cut from Hanno Strufe end of 2016. The MetBul says: The rock shows a fine-grained, equigranular texture of olivine and orthopyroxene with frequent triple junctions at adjoining mineral grains. Olivine is compositionally homogeneous and orthopyroxene show slight zoning. Although intensely recrystallized the outlines of the original minerals are still visible. Also several characteristic reduced rims are preserved at olivine-carbon contacts. The sample contains lamellar intergrowths of daubreelite and troilite.
I bought this interesting end-cut from Hanno Strufe end of 2016. The MetBul says: The rock shows a fine-grained, equigranular texture of olivine and orthopyroxene with frequent triple junctions at adjoining mineral grains. Olivine is compositionally homogeneous and orthopyroxene show slight zoning. Although intensely recrystallized the outlines of the original minerals are still visible. Also several characteristic reduced rims are preserved at olivine-carbon contacts. The sample contains lamellar intergrowths of daubreelite and troilite.
The rock shows a fine-grained, equigranular texture of olivine and orthopyroxene with frequent triple junctions at adjoining mineral grains. Olivine is compositionally homogeneous and orthopyroxene show slight zoning. Although intensely recrystallized the outlines of the original minerals are still visible. Also several characteristic reduced rims are preserved at olivine-carbon contacts. The sample contains lamellar intergrowths of daubreelite and troilite.