"Dessus de bouchon"

Brown, earthy, massive; used for yellow pigment.

Nearly pure, green crystalline forsterite.

Pure, bright yellow, Frasch sulfur.

White, massive, coarse crystalline vein, Mohs’ hardness of 7.

Fragments in natural condition, many showing concave forms and fusion crusts. Sizes are approximate.

Pyroxene group; dark green, pure cleaved fragments.

Ward's® highest quality and purest mineral offerings.

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

Cut black mica cleavage sheets.

Red, earthy, in natural chunk form; common pigment ore.

Feldspar group; pink cleavages showing perthitic texture, common potassium feldspar, Mohs’ hardness of 6.

Feldspar group; white to gray, sodium plagioclase cleavages; some faces may show twinning.

Mica group; cut sheets showing basal cleavages. Books and sheets in bulk pack.

Feldspar group; calcium end member plagioclase crystals in pyroxene matrix.

Our excellent series of standard thin sections features important and interesting rock-forming mineral types most often found in field samples.

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