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Howardite 45.6g

$875.00

Out of stock

  • Meteorite Type: Howardite
  • Meteorite Weight: 45.6 grams
  • Approximate Measurements: 69 mm x 50 mm x 9 mm
  • Additional Information: End cut in glass front display box, includes original RA Langheinrich Meteorite Collection and Aerolite Meteorites identification cards. Beautifully exhibits a fine-grained mosaic of recrystallized pyroxenes and plagioclase formed by high temperatures and pressures, with localized melt pockets and veins in clasts.

Out of stock

Description

Howardite, found in Northwest Africa, 2003


WRITEUP FROM THE METEORITICAL BULLETIN:

Northwest Africa 1929 (NWA 1929)

(Northwest Africa)

Year found: 2003

Classification: Howardite

Petrography: (T. Bunch and J. Wittke, NAU ) A breccia of 72 vol% cumulate eucrite clasts, 8% subophitic clasts, 14% diogenites, and 6% melt clasts. Pervasive solid-state recrystallization of plagioclase and pyroxenes with localized melt pockets and veins in clasts.

Geochemistry: Coarse-grained gabbroic eucrite: Pyroxene (Fs45–40Wo7–20); plagioclase (An91.2–95.3); metal (Ni = 0.97; Cr = 0.87 [both wt%]). Diogenite: Pyroxene (Fs43–54Wo2.5–3.6; Fe/Mn = 36, 37).

Classification: Achondrite (howardite); high shock.

Additional information

Weight 45.6 g

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