'Mg fe al' presentation slideshows

Conversations with the Earth Tom Burbine tburbine@framingham.edu

352 views • 29 slides

Groups of Minerals

Liz LaRosa 5 th grade science www.middleschoolscience.com 2010. Groups of Minerals. Mineral Groups - Notes. As you view the slides, write your notes into the graphic organizers. Include all the information from each slide into the appropriate boxes. Write neatly and carefully.

424 views • 19 slides

Pyroxenes

Pyroxenes. http://www.es.mq.edu.au/ndaczko/Web/GEOS254/GEOS254.html Pyroxenes are a major component of the mantle (peridotite is olivine plus pyroxene) and the oceanic crust (basalt, dolerite, gabbro are mainly calcium-rich plagioclase plus pyroxene).

336 views • 11 slides

The Minerals of Metamorphosed Mafic Rocks

The Minerals of Metamorphosed Mafic Rocks. Mafic rocks generally have igneous protoliths: basalt and its coarse-grained equivalent, gabbro. Minerals of Metamorphosed Mafic Rocks. Plagioclase (Ca,Na)(Al,Si) 4 O 8 (like in igneous rocks) Amphiboles (double-chain silicates)

395 views • 11 slides