NWA 12333 Meteorite - R5 (rumurutite) Chondrite - 3. 64g Slice
Item History & Price
| Reference Number: Avaluer:4280299 | Modified Item: No |
NWA 12333
Sahara
R5 chondrite
found in 2017
3.64 grams slice sold in a membrane box
with label/certificate of authenticity
I combine shipment
History: Purchased in Erfoud by Pierre-Marie Pelé.
Physical characteristics: Dark stone, partially covered with fusion crust. Cut surface reveals dark interior with small chondrules.
Petrography: Highly recrystallized chondrite with average size plagioclase below 50 μm. Abundant sulfide. Accessory magnetit...e.
Geochemistry: Olivine Fa39.6±0.4, range Fa39.1-40.1, Cr2O3 in ferroan olivine is 0.0±0.1 wt%, NiO2=0.22±0.20 wt% (n=3). High-Ca pyroxene Fs29.6Wo68.7 (n=1). Chromite Cr#=0.85 (n=1).
Classification: Rumuruti chondrite (R5).
R chondrite: The Rumuruti (R) group of chondrites does not clearly belong to any of the major classes of chondrites (ordinary, carbonaceous, enstatite); R chondrites have sub-solar Mg/Si and refractory/Si ratios, oxygen isotope compositions that plot above the terrestrial fractionation line and ordinary chondrites, and highly oxidized mineralogy.
type 5: Designates chondrites that have been metamorphosed under conditions sufficient to homogenize olivine and pyroxene, convert all low-Ca pyroxene to orthopyroxene, cause the growth of various secondary minerals, and blur chondrule outlines.
The meteorite is sold in a box and with a separate label / signed certificate of authenticity.
I'm a world famous meteorite hunter and member of the International meteorite collectors Association (member # 3360)
Sahara
R5 chondrite
found in 2017
3.64 grams slice sold in a membrane box
with label/certificate of authenticity
I combine shipment
History: Purchased in Erfoud by Pierre-Marie Pelé.
Physical characteristics: Dark stone, partially covered with fusion crust. Cut surface reveals dark interior with small chondrules.
Petrography: Highly recrystallized chondrite with average size plagioclase below 50 μm. Abundant sulfide. Accessory magnetit...e.
Geochemistry: Olivine Fa39.6±0.4, range Fa39.1-40.1, Cr2O3 in ferroan olivine is 0.0±0.1 wt%, NiO2=0.22±0.20 wt% (n=3). High-Ca pyroxene Fs29.6Wo68.7 (n=1). Chromite Cr#=0.85 (n=1).
Classification: Rumuruti chondrite (R5).
R chondrite: The Rumuruti (R) group of chondrites does not clearly belong to any of the major classes of chondrites (ordinary, carbonaceous, enstatite); R chondrites have sub-solar Mg/Si and refractory/Si ratios, oxygen isotope compositions that plot above the terrestrial fractionation line and ordinary chondrites, and highly oxidized mineralogy.
type 5: Designates chondrites that have been metamorphosed under conditions sufficient to homogenize olivine and pyroxene, convert all low-Ca pyroxene to orthopyroxene, cause the growth of various secondary minerals, and blur chondrule outlines.
The meteorite is sold in a box and with a separate label / signed certificate of authenticity.
I'm a world famous meteorite hunter and member of the International meteorite collectors Association (member # 3360)
