Obsidian is an igneous rock that forms when molten rock material cools so rapidly that atoms are unable to arrange themselves into a crystalline structure. It is an amorphous material known as a  mineraloid .. The result is a volcanic glass with a smooth uniform texture that breaks with a conchoidal fracture (see photo on right). Obsidian is usually an extrusive rock-one that solidifies above Earth's surface. However, it can form in a variety of cooling environments: Black is the most common color of obsidian.
â¢ PEP TALK (noun). The noun PEP TALK has 1 sense: 1. a speech of exhortation attempting to instill enthusiasm and determination in a team or staff. Familiarity information: PEP TALK used as a noun is very rare.
Evoking change talk is one way to develop discrepancy. ï· Roll with resistance â avoid argumentation: This refers to the providerâs ability to side step or diminish resistance and proceed to connect with the client and move in the same direction. It also refers to avoiding arguments. Change talk: From its inception a guiding principle of MI was to have the client, rather than the counselor, voice the arguments for change (Miller & Rose, 2009). Change talk refers to clientâ statements that indicate an inclination or a reason for change.