"WardsSci000478"

[NA_SciEd] Ward's® Schist (Talc Tremolite)

Epidote (Single crystal), Ward's

Spirally twisted oyster.

Large, black, rounded tektite, 1 1/2". Thailand.

Dark, waxy, bitumin-rich.

Brazil.

1 pound of black sand packaged in a heat-sealed bag.

Feldspar group; blue-green, microcline, triclinic, ³/₄". Colorado.

An introductory rock set contains six samples from each of the three major rock types.

Clear, euhedral points and sections.