Nr. 102792561

Ikke lenger tilgjengelig
Bechar 008 (HED) howarditt - 32.5 g
Budgivning avsluttet
1 uke siden

Bechar 008 (HED) howarditt - 32.5 g

Bechar 008 30.25293 N, 3.53005 W Bechar, Algeria Purchased: 2022 Jul Classification: HED achondrite (Howardite) History: Reportedly a group of meteorite hunters found several fragments of this material in Algeria, in an area called Alagla (near Abadla) in July 2022. Several months later Mohamed Ali Loud bought a total of 1700 g from a meteorite dealer in Mauritania. Petrography (K. Metzler, IfP) Polymict achondritic breccia, consisting of mineral fragments and lithic clasts up to ~5 mm in size. These components are embedded in a fine-grained clastic matrix of related debris. Lithic clasts are dominated by eucritic gabbros and granulites, both of which show exsolved pyroxene. Mineral fragments include various eucritic pyroxenes (with and without augite exsolution lamellae), diogenitic pyroxene, feldspar, a silica polymorph, chromite, ilmenite, and Fe-Ni metal. About 10-20 vol% diogenitic components. Geochemistry: Mineral compositions and geochemistry: Gabbro clast: Low-Ca pyroxene (host): Fs60.6±0.5 Wo3.1±0.2 (Fs59.9-61.2 Wo2.8-3.3); mean Fe/Mn (at.): 30.3; n=6. Ca-rich pyroxene (exsolution lamellae) Fs28.8±1.4 Wo40.9±1.5 (Fs27.4-30.5 Wo38.8-42.6); mean Fe/Mn (at.): 31.5; n=6. Plagioclase: An86.8±1.8 Or0.3±0.3 (An85.4-89.4 Or0.0-0.8); n=6. Diogenitic pyroxene: Fs22.5±0.5 Wo2.0±0.3 (Fs21.5-23.2 Wo1.5-2.4); mean Fe/Mn (at.): 32.6; n=7. Plagioclase fragments from clastic matrix: An89.6±3.6 Or0.5±0.4 (An82.5-95.7 Or0.1-1.1); n=11. Classification: Howardite, based on mineral chemistry, variety of eucritic lithologies, and occurrence of >10 vol% of diogenitic components. I am a member of the Meteoritical Society (#7743) and have collecting meteorites for more than 15 years.

Nr. 102792561

Ikke lenger tilgjengelig
Bechar 008 (HED) howarditt - 32.5 g

Bechar 008 (HED) howarditt - 32.5 g

Bechar 008 30.25293 N, 3.53005 W

Bechar, Algeria

Purchased: 2022 Jul

Classification: HED achondrite (Howardite)

History: Reportedly a group of meteorite hunters found several fragments of this material in Algeria, in an area called Alagla (near Abadla) in July 2022. Several months later Mohamed Ali Loud bought a total of 1700 g from a meteorite dealer in Mauritania.

Petrography (K. Metzler, IfP) Polymict achondritic breccia, consisting of mineral fragments and lithic clasts up to ~5 mm in size. These components are embedded in a fine-grained clastic matrix of related debris. Lithic clasts are dominated by eucritic gabbros and granulites, both of which show exsolved pyroxene. Mineral fragments include various eucritic pyroxenes (with and without augite exsolution lamellae), diogenitic pyroxene, feldspar, a silica polymorph, chromite, ilmenite, and Fe-Ni metal. About 10-20 vol% diogenitic components.

Geochemistry: Mineral compositions and geochemistry: Gabbro clast: Low-Ca pyroxene (host): Fs60.6±0.5 Wo3.1±0.2 (Fs59.9-61.2 Wo2.8-3.3); mean Fe/Mn (at.): 30.3; n=6. Ca-rich pyroxene (exsolution lamellae) Fs28.8±1.4 Wo40.9±1.5 (Fs27.4-30.5 Wo38.8-42.6); mean Fe/Mn (at.): 31.5; n=6. Plagioclase: An86.8±1.8 Or0.3±0.3 (An85.4-89.4 Or0.0-0.8); n=6. Diogenitic pyroxene: Fs22.5±0.5 Wo2.0±0.3 (Fs21.5-23.2 Wo1.5-2.4); mean Fe/Mn (at.): 32.6; n=7. Plagioclase fragments from clastic matrix: An89.6±3.6 Or0.5±0.4 (An82.5-95.7 Or0.1-1.1); n=11.

Classification: Howardite, based on mineral chemistry, variety of eucritic lithologies, and occurrence of >10 vol% of diogenitic components.

I am a member of the Meteoritical Society (#7743) and have collecting meteorites for more than 15 years.

Budgivning avsluttet
Francesco Moser
Ekspert
Estimat  € 250 - € 300

Lignende objekter

For deg

Mineraler og meteroitter

Legg inn et søkevarsel
Angi et søkevarsel for å bli varslet når nye treff er tilgjengelige.

Dette objektet ble vist i

                                        
                                                                                                    
                    
                                        
                                                                                                    
                    
                                        
                                                                                                    
                    
                                        
                                                                                                    
                    

Hvordan kjøpe på Catawiki

Les mer om vår kjøperbeskyttelse

      1. Oppdag noe spesielt

      Bla gjennom tusenvis av spesielle objekter valgt av eksperter. Se bilder, detaljer og estimert verdi av hvert spesialobjekt. 

      2. Legg inn det høyeste budet

      Finn noe du liker, og legg inn det øverste budet. Du kan følge auksjonen til slutten eller la systemet vårt gjøre budgivningen for deg. Alt du trenger å gjøre er å angi et bud for det maksimale beløpet du vil betale. 

      3. Å gjøre en sikker betaling

      Betal for dine spesielle objekter og vi holder betalingen sikker til objektet ditt kommer trygt og godt frem. Vi bruker et pålitelig betalingssystem for å håndtere alle transaksjoner. 

Har du noe lignende å selge?

Enten du er ny på nettauksjoner eller profesjonell selger, kan vi hjelpe deg med å tjene mer for dine spesielle gjenstander.

Selg objektet ditt