ROCKS & MINERALS SETS: Geological Specimens, Scale of Hardness Test, Igneous-Metamorphic-Sedimentary | Sets range from 6 to 50 | Ideal to display rock variety

Description

ROCKS & MINERAL SETS.

A variety of rocks & minerals sets for use in the science laboratory.

• A rock is a naturally occurring solid aggregate of one or more minerals or mineraloids – a term used to describe a number of different hypotheses which suggests that petroleum and natural gas are formed by inorganic means rather than by the decomposition of organisms.
• A mineral is a naturally occurring substance that is solid and stable at room temperature and can be represented by a chemical formula, usually abiogenic, and has an ordered atomic structure.
• Comparing rocks and minerals.
  A rock is a naturally occurring solid aggregate of one or more minerals or mineraloids – a term used to describe a number of different hypotheses which suggests that petroleum and natural gas are formed by inorganic means rather than by the decomposition of organisms. A mineral is a naturally occurring substance that is solid and stable at room temperature and can be represented by a chemical formula, usually abiogenic, and has an ordered atomic structure.

For alternative Rock Fossil Tools option, click here.
Wikipedia info