"WardsSci000478"

Fine, common limestone; massive, and will fizzle with HCl.

Foliated biotite, coarse, silvery gray with quartz-feldspar bands.

Gray, fine to medium-grained “Berea grit”.

White and black bands of quartz, feldspar, and biotite; typical foliation.

Feldspar group; white-to-gray cleavages of sodic plagioclase; some show twinning.

Specimens illustrate important stages of mineral formation.

Buy Both the Thin Section Set and the Hand Specimen Set and Save!

Coarse, 'salt and pepper': dark pyroxene and light andesine. Provides perfect representation of an intermediate igneous rock.

Clear rhombs showing double refraction.

Designed for Introductory College Petrography Labs.