AEROLITES
Transmitted Light Image Credit: Amanda Tosi
Transmitted and Polarized Light Image Credit: Amanda Tosi
Image Credit: Amanda Tosi
Transmitted Light Image Credit: Amanda Tosi
Stony
TIPO:
CLASSE:
CLAN:
GRUPO:
TIPO PET.:
EST. CHOQUE:
INTEMPERISM0:
PAÍS:
ANO:
A/Q
CHONDRITE
ORDINARY
H-L-LL
H
5
-
-
BRAZIL - RN
1836
FALL
Equilibrated Ordinary Chondrite H5.
Zeiss Axio Imager Optical Microscope - CITL MK5-2 Cathode Ray Source 15KeV - 0.7mA The prenominance of blue in the mesostasis of the condoms, with grains of olivine and pyroxene without catodoluminescence or presenting a dark red, as well as part of the matrix still without CL, indicates a classification of the meteorite within a primitive petrographic type with mild thermal metamorphism, in this case type 3.7, according to van Schumus & Wood (1967). Image Credit: Amanda Tosi
Zeiss Axio Imager Optical Microscope - CITL MK5-2 Cathode Ray Source 15KeV - 0.7mA Olivine chondrule without CL with blue mesostasis. The red and yellow grains are the apatites present in the mezo-Madaras meteorite. Image Credit: Amanda Tosi
Fragment of the Mezo-Madaras meteorite showing its chondritic texture with well-defined chondrules. Image Credit: Woreczko Jan and Wadi
Zeiss Axio Imager Optical Microscope - CITL MK5-2 Cathode Ray Source 15KeV - 0.7mA The prenominance of blue in the mesostasis of the condoms, with grains of olivine and pyroxene without catodoluminescence or presenting a dark red, as well as part of the matrix still without CL, indicates a classification of the meteorite within a primitive petrographic type with mild thermal metamorphism, in this case type 3.7, according to van Schumus & Wood (1967). Image Credit: Amanda Tosi
Stony
TIPO:
CLASSE:
CLAN:
GRUPO:
TIPO PET.:
EST. CHOQUE:
INTEMPERISM0:
PAÍS:
ANO:
A/Q
CHONDRITE
ORDINARY
H-L-LL
L
3.7
S2
W0
ROMANIA
1852
FALL
Unequilibrated Ordinary Crondrite with polymitic breccias L 3.7. Shock Stage S2 and Weathering W0.
One of the few well-defined chondrules. Source: TOSI A.A.
Chondrule in the center with poorly defined edges. Metal grains showing oxidation. Source: TOSI A.A.
Vein with melted material and presence of small metal grains (melted pockets) formed due to high temperatures and pressure after shock events. Source: TOSI A.A.
One of the few well-defined chondrules. Source: TOSI A.A.
Stony
TIPO:
CLASSE:
CLAN:
GRUPO:
TIPO PET.:
EST. CHOQUE:
INTEMPERISM0:
PAÍS:
ANO:
A/Q
CHONDRITE
ORDINARY
H-L-LL
H
5
S4
W2
BRAZIL - GO
2018
FIND
Equilibrated Ordinary Chondrite H5 with moderate shock stage S4 and terrestrial weathering W2
Fragment of the Mafra meteorite, which was classified as a slightly Equilibrated Ordinary Chondrite 3/4 petrographic type with breccias of 4/5 petrographic type. Image Credit: André Moutinho
Fragment of the Mafra meteorite with its fusion crust. Image Credit: André Moutinho
Fragment of the Mafra meteorite, which was classified as a slightly Equilibrated Ordinary Chondrite 3/4 petrographic type with breccias of 4/5 petrographic type. Image Credit: André Moutinho
Stony
TIPO:
CLASSE:
CLAN:
GRUPO:
TIPO PET.:
EST. CHOQUE:
INTEMPERISM0:
PAÍS:
ANO:
A/Q
CHONDRITE
ORDINARY
H-L-LL
L
3-4
-
-
BRAZIL - SC
1941
FALL
Slightly Equilibrated Ordinary Chondrite L3-4. It presents petrographic type clasts 4-5, being a genomic breccia, with evidence of having suffered shock events.
Transmitted Light Image Credit: Amanda Tosi
Transmitted and Polarized Light Image Credit: Amanda Tosi
Transmitted Light Image Credit: Amanda Tosi
Stony
TIPO:
CLASSE:
CLAN:
GRUPO:
TIPO PET.:
EST. CHOQUE:
INTEMPERISM0:
PAÍS:
ANO:
A/Q
CHONDRITE
ORDINARY
H-L-LL
L
6
S1 or more
-
BRAZIL - MG
1888
-
Equilibrated Ordinary Chondrite L6 with signs of shock stage.
Fragment of the Morro do Rocio meteorite with its barely chondritic texture and weathered by terrestrial oxidation. Image Credit: André Moutinho
Fragment of the Morro do Rocio meteorite with the fusion crust. Image Credit: André Moutinho
Fragment of the Morro do Rocio meteorite with its barely chondritic texture and weathered by terrestrial oxidation. Image Credit: André Moutinho
Stony
TIPO:
CLASSE:
CLAN:
GRUPO:
TIPO PET.:
EST. CHOQUE:
INTEMPERISM0:
PAÍS:
ANO:
A/Q
CHONDRITE
ORDINARY
H-L-LL
H
5
-
-
BRAZIL - SC
1928
FIND
Anomalous Equilibrated Ordinary Chondrite H5 because it is rich in silica, which is very rare to be found in chondrites.
Fragment of the Marília meteorite. Image Credit: André Moutinho
Fragment of the Marília meteorite with the fusion crust. Image Credit: André Moutinho
Fragment of the Marília meteorite. Image Credit: André Moutinho
Stony
TIPO:
CLASSE:
CLAN:
GRUPO:
TIPO PET.:
EST. CHOQUE:
INTEMPERISM0:
PAÍS:
ANO:
A/Q
CHONDRITE
ORDINARY
H-L-LL
H
4
-
-
BRAZIL - SP
1971
FALL
Equilibrated Ordinary Chondrite H4, slightly weathered by terrestrial oxidation.
Fragment of the Minas Gerais (b) meteorite showing its fusion crust. Image Credit: André Moutinho
Fragment of the Minas Gerais (b) meteorite exhibiting its chondritic texture, dark veins formed by shock events (S3) and oxidized regions (W1-2) due to terrestrial weathering. Image Credit: André Moutinho
Fragment of the Minas Gerais (b) meteorite showing its fusion crust. Image Credit: André Moutinho
Stony
TIPO:
CLASSE:
CLAN:
GRUPO:
TIPO PET.:
EST. CHOQUE:
INTEMPERISM0:
PAÍS:
ANO:
A/Q
CHONDRITE
ORDINARY
H-L-LL
H
4
S3
W1-2
BRAZIL - MG
2001
FIND
Equilibrated Ordinary Chondrite H4 with moderate shock stage S3 and slight terrestrial weathering W1-2.
It is possible to observe different types of breccias, hence the classification of a polymictic brecciated. It is also possible to observe the thin fusion crust, formed at the entrance of the meteorite into the Earth's atmosphere. Image Credit: Amanda Tosi
Transmitted and Polarized Light Image Credit: Amanda Tosi
Fragment of the Parambu meteorite showing its fusion crust and its chondritic and bracciated texture. Image Credit: André Moutinho
It is possible to observe different types of breccias, hence the classification of a polymictic brecciated. It is also possible to observe the thin fusion crust, formed at the entrance of the meteorite into the Earth's atmosphere. Image Credit: Amanda Tosi
Stony
TIPO:
CLASSE:
CLAN:
GRUPO:
TIPO PET.:
EST. CHOQUE:
INTEMPERISM0:
PAÍS:
ANO:
A/Q
CHONDRITE
ORDINARY
H-L-LL
LL
5
-
-
BRAZIL - CE
1967
FALL
According to the mineralogy and petrological description, Parambu is an ordinary chondrite LL5, characterized by presenting an advanced polymictic brecciated structure.