Affichage de 739–756 sur 1675 résultatsTrié du plus récent au plus ancien
Très rare et très esthétique.
Couche : Oxfordien inférieur – 150 ma.
Provenance : Drôme provençale – Barronnies, Région Condorcet 26, Col de beauvoisin – Gumiane.
Très rare et très esthétique.
Couche : Oxfordien inférieur – 150 ma.
Provenance : Drôme provençale – Barronnies, Région Condorcet 26, Col de beauvoisin – Gumiane.
Out of stock
Très rare et très esthétique.
Couche : Oxfordien inférieur – 150 ma.
Provenance : Drôme provençale – Barronnies, Région Condorcet 26, Col de beauvoisin – Gumiane.
Très rare et très esthétique.
Couche : Oxfordien inférieur – 150 ma.
Provenance : Drôme provençale – Barronnies, Région Condorcet 26, Col de beauvoisin – Gumiane.
Très rare et très esthétique.
Couche : Oxfordien inférieur – 150 ma.
Provenance : Drôme provençale – Barronnies, Région Condorcet 26, Col de beauvoisin – Gumiane.
Out of stock
Out of stock
Out of stock
Out of stock
Out of stock
Out of stock
Out of stock
NWA 14425 est une météorite de type chondrite enstatite, classifiée EH3.
C’est une météorite riche en métal difficile à trouver sur le marché.
Writeup from MB 111:
Northwest Africa 14425 (NWA 14425)
(Northwest Africa)
Purchased: 2021 Feb
Classification: Enstatite chondrite (EH3)
History: Purchased by Jason Whitcomb in February 2021 from an Algerian dealer.
Petrography: (A. Irving, UWS and J. Boesenberg, BrownU) Mostly relatively small enstatite-forsterite-bearing chondrules (exhibiting a wide size variation, apparent diameter 380±410 µm, N = 24) are set in a fine grained matrix containing daubreelite, troilite, altered Si-bearing kamacite, perryite, schreibersite, oldhamite and albitic glass. Several chondrules contain relatively ferroan low-Ca pyroxene.
Geochemistry: Enstatite (Fs1.3±0.9Wo0.4±0.3, range Fs0.3-4.1Wo0.0-1.0, N = 19), forsterite (Fa0.3±0.1, range Fa0.3-0.4, N = 3), relatively ferroan low-Ca pyroxene (Fs13.4±3.8Wo3.0±1.1, range Fs11.4-19.1Wo4.2-1.9, N = 4).
Classification: Enstatite chondrite (EH3). The presence of relatively ferroan low-Ca pyroxene in addition to the dominant enstatite has been previously documented in EH3 chondrite Yamato 691.
Specimens: 24.83 g including one polished thin section at PSF; remainder with Mr. J. Whitcomb.
Out of stock
NWA 14425 est une météorite de type chondrite enstatite, classifiée EH3.
C’est une météorite riche en métal difficile à trouver sur le marché.
Writeup from MB 111:
Northwest Africa 14425 (NWA 14425)
(Northwest Africa)
Purchased: 2021 Feb
Classification: Enstatite chondrite (EH3)
History: Purchased by Jason Whitcomb in February 2021 from an Algerian dealer.
Petrography: (A. Irving, UWS and J. Boesenberg, BrownU) Mostly relatively small enstatite-forsterite-bearing chondrules (exhibiting a wide size variation, apparent diameter 380±410 µm, N = 24) are set in a fine grained matrix containing daubreelite, troilite, altered Si-bearing kamacite, perryite, schreibersite, oldhamite and albitic glass. Several chondrules contain relatively ferroan low-Ca pyroxene.
Geochemistry: Enstatite (Fs1.3±0.9Wo0.4±0.3, range Fs0.3-4.1Wo0.0-1.0, N = 19), forsterite (Fa0.3±0.1, range Fa0.3-0.4, N = 3), relatively ferroan low-Ca pyroxene (Fs13.4±3.8Wo3.0±1.1, range Fs11.4-19.1Wo4.2-1.9, N = 4).
Classification: Enstatite chondrite (EH3). The presence of relatively ferroan low-Ca pyroxene in addition to the dominant enstatite has been previously documented in EH3 chondrite Yamato 691.
Specimens: 24.83 g including one polished thin section at PSF; remainder with Mr. J. Whitcomb.
Out of stock
NWA 14425 est une météorite de type chondrite enstatite, classifiée EH3.
C’est une météorite riche en métal difficile à trouver sur le marché.
Writeup from MB 111:
Northwest Africa 14425 (NWA 14425)
(Northwest Africa)
Purchased: 2021 Feb
Classification: Enstatite chondrite (EH3)
History: Purchased by Jason Whitcomb in February 2021 from an Algerian dealer.
Petrography: (A. Irving, UWS and J. Boesenberg, BrownU) Mostly relatively small enstatite-forsterite-bearing chondrules (exhibiting a wide size variation, apparent diameter 380±410 µm, N = 24) are set in a fine grained matrix containing daubreelite, troilite, altered Si-bearing kamacite, perryite, schreibersite, oldhamite and albitic glass. Several chondrules contain relatively ferroan low-Ca pyroxene.
Geochemistry: Enstatite (Fs1.3±0.9Wo0.4±0.3, range Fs0.3-4.1Wo0.0-1.0, N = 19), forsterite (Fa0.3±0.1, range Fa0.3-0.4, N = 3), relatively ferroan low-Ca pyroxene (Fs13.4±3.8Wo3.0±1.1, range Fs11.4-19.1Wo4.2-1.9, N = 4).
Classification: Enstatite chondrite (EH3). The presence of relatively ferroan low-Ca pyroxene in addition to the dominant enstatite has been previously documented in EH3 chondrite Yamato 691.
Specimens: 24.83 g including one polished thin section at PSF; remainder with Mr. J. Whitcomb.
Out of stock
NWA 14425 est une météorite de type chondrite enstatite, classifiée EH3.
C’est une météorite riche en métal difficile à trouver sur le marché.
Writeup from MB 111:
Northwest Africa 14425 (NWA 14425)
(Northwest Africa)
Purchased: 2021 Feb
Classification: Enstatite chondrite (EH3)
History: Purchased by Jason Whitcomb in February 2021 from an Algerian dealer.
Petrography: (A. Irving, UWS and J. Boesenberg, BrownU) Mostly relatively small enstatite-forsterite-bearing chondrules (exhibiting a wide size variation, apparent diameter 380±410 µm, N = 24) are set in a fine grained matrix containing daubreelite, troilite, altered Si-bearing kamacite, perryite, schreibersite, oldhamite and albitic glass. Several chondrules contain relatively ferroan low-Ca pyroxene.
Geochemistry: Enstatite (Fs1.3±0.9Wo0.4±0.3, range Fs0.3-4.1Wo0.0-1.0, N = 19), forsterite (Fa0.3±0.1, range Fa0.3-0.4, N = 3), relatively ferroan low-Ca pyroxene (Fs13.4±3.8Wo3.0±1.1, range Fs11.4-19.1Wo4.2-1.9, N = 4).
Classification: Enstatite chondrite (EH3). The presence of relatively ferroan low-Ca pyroxene in addition to the dominant enstatite has been previously documented in EH3 chondrite Yamato 691.
Specimens: 24.83 g including one polished thin section at PSF; remainder with Mr. J. Whitcomb.
