dc.creator | | |
dc.date.accessioned | 2024-02-12T18:11:26Z | |
dc.date.available | 2024-02-12T18:11:26Z | |
dc.date.issued | n.d. | |
dc.identifier.uri | https://repository.tcu.edu/handle/116099117/63196 | |
dc.description | Describes appearance of meteorite for petrography, shock classification, modes, and microprobe analyses | |
dc.relation | Oscar Monnig Papers (MS 124) | |
dc.rights | Prior written permission from TCU Special Collections required to use any document or photograph. | |
dc.source | Series III, Box 06, Forestburg, Montague Co., TX folder | |
dc.subject | Meteorite | |
dc.subject | Forestburg meteorite | |
dc.subject | Forestburg (Tex.) | |
dc.title | Classification of Ordinary Chondrite Paperwork for Forestburg (a), Sample No. M149.1 | |
dc.type | Document | |
dc.description.transcription | CLASSIFICATION OF ORDINARY CHONDRITES Meteorite [Forestburg (a)] Sample No.: [M149.1] PETROGRAPHY CHONDRULE OUTLINES [Very Distinct] Discernible Obscure Non-Existent PRESENCE OF CHONDRULE GLASS Yes [No] PLAGIOCLASE GRAIN SIZE [?] (For highly metamorphosed Meteorites] STRIATED PYROXENE Everywhere [Abundant] Rare None [?] MATRIX Opaque Recrystallized (Caution: Beware of Weathering) CHONDRULE TYPES [All Present] Some Missing WEATHERING [Pigments] Patches Veins very little METAL Fresh [Weathering Rims] Islands [Replaced] TROILITE Fresh [Weathering Rims] Islands [Replaced] OPAQUE GRAIN SIZE (Max) Metal Troilite [0.4 mm] BRECCIATION Obvious [Not Obvious] UNUSUAL FEATURES SHOCK CLASSIFICATION OLIVINE [Sharp Undulatory] [Planar Fractures Mosaicism] Ringwoodite [?] PLAGIOCLASE No effects Undulatory Extinction Maskelynite SHOCK VEINS Yes [No] SHOCK POCKETS Yes [No] Size MODES tr. Metal 4.6 Troilite 9.0 Weathering Products (all in vol.%) 1085 No. of Points MICROPROBE ANALYSES Olivine Fa Avg. o Number of analyses Low-Ca Pyroxene Fs Avg. & o Wo Avg. & o N High-Ca Pyroxene (optional) Fs Wo N | |