Nr. 99642510
Verkocht
Eindbod
€ 20
1 dag geleden
Schaal van achondriet meteoriet Eucrite smeltbreccia Mooie textuur van NWA 14503 - 3.13 g - (1)
Northwest Africa 14503 (NWA 14503)
(Northwest Africa)
Purchased: 2021
Classification: HED achondrite (Eucrite, melt breccia)
History: The meteorite was purchased from a meteorite dealer in Morocco.
Physical characteristics: Several fragments with minor fusion crust.
Petrography: The meteorite is a melt breccia composed of large,up to 2 cm basaltic clasts and up to 1.5 mm sized mineral fragments set into abundant fine-grained and mostly recrystallized melt rock matrix. Main minerals are exsolved pyroxenes and calcic plagioclase. Mineral grains entrained in the melt matrix often show resorption textures and pyroxene also mottled compositional zoning. The recrystallized melt rock is predominantly composed of 1-2 µm sized pyroxene and feldspar grains. Minor phases include silica, chromite, ilmenite, and FeS. No metallic iron has been detected. Contains secondary calcite and barite.
Geochemistry: low-Ca pyroxene: Fs60.6±1.8Wo3.2±1.3 (Fs61.8-62.7Wo2.2-6.0, FeO/MnO=28-31, n=10); Ca-pyroxene: Fs26.9±0.6Wo43.4±0.5 (Fs26.0-28.4Wo42.2-44.0, FeO/MnO=28-36, n=10); calcic plagioclase: An89.5±3.7 (An83.5-94.7, n=10)
Nr. 99642510
Verkocht
Schaal van achondriet meteoriet Eucrite smeltbreccia Mooie textuur van NWA 14503 - 3.13 g - (1)
Northwest Africa 14503 (NWA 14503)
(Northwest Africa)
Purchased: 2021
Classification: HED achondrite (Eucrite, melt breccia)
History: The meteorite was purchased from a meteorite dealer in Morocco.
Physical characteristics: Several fragments with minor fusion crust.
Petrography: The meteorite is a melt breccia composed of large,up to 2 cm basaltic clasts and up to 1.5 mm sized mineral fragments set into abundant fine-grained and mostly recrystallized melt rock matrix. Main minerals are exsolved pyroxenes and calcic plagioclase. Mineral grains entrained in the melt matrix often show resorption textures and pyroxene also mottled compositional zoning. The recrystallized melt rock is predominantly composed of 1-2 µm sized pyroxene and feldspar grains. Minor phases include silica, chromite, ilmenite, and FeS. No metallic iron has been detected. Contains secondary calcite and barite.
Geochemistry: low-Ca pyroxene: Fs60.6±1.8Wo3.2±1.3 (Fs61.8-62.7Wo2.2-6.0, FeO/MnO=28-31, n=10); Ca-pyroxene: Fs26.9±0.6Wo43.4±0.5 (Fs26.0-28.4Wo42.2-44.0, FeO/MnO=28-36, n=10); calcic plagioclase: An89.5±3.7 (An83.5-94.7, n=10)
Vergelijkbare objecten
-
-
-
-
-
-
-
-
-
Stel een zoekopdracht in
Stel een zoekopdracht in om een melding te ontvangen wanneer er nieuwe resultaten zijn.
Dit object was te vinden in
Zo koop je op Catawiki
1. Ontdek iets bijzonders
2. Plaats het hoogste bod
3. Veilig betalen