20996-31 - NWA Possible Achondrite Meteorite of Basaltic composition. In study. 103.6g Corals The major silicate mineral is

The major silicate mineral is olivine

which were among the larger theropods

Parent taxon: Clypeasteridae according to S

by biotite

The Mosasaur

20996-31 - NWA Possible Achondrite Meteorite of Basaltic composition. In study. 103.6g Corals The major silicate mineral isPetrographic description Under petrographic microscope, the sample is maily formed by clinopyroxene phenocrysts (Fig. 2), and, in a minor proportion, by orthopyroxenes and highly altered feldspars in a fine grained matrix. The rock is altered, with plagioclase phenocrysts transformed to albite and sericite (Fig. 3). Clinopyroxene is augite, showing several cracks and deformation twins. The matrix is formed by very fine grained plagioclase, K feldspar