Virtual Rock Collection - PowerPoint PPT Presentation

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Virtual Rock Collection

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  1. Virtual Rock Collection by Maria and Sam

  2. Pink Calcite Crystal Color: Extremely variable but generally white or colorless or with light shades of yellow, orange, blue, pink, red, brown, green, black and gray. Occasionally iridescent.

Lustre: Vitreous to resinous to dull in massive forms

Transparency: Transparent to translucent 
Uses: Used in cements and mortars, production of lime, limestone is used in the steel industry; glass industry, ornamental stone, chemical and optical uses and as mineral specimens.

  3. Calcite as ChalkWhite Cliffs of Dover UK

  4. Calcite Stalactites and Stalagmites

  5. Quartz Crystals Drawing

  6. Quartz Crystal Quartz is the most abundant and widely distributed mineral found at Earth's surface. It is present and plentiful in all parts of the world. It forms at all temperatures. It is abundant in igneous, metamorphic and sedimentary rocks.

  7. Amethyst Quartz Geode Geodes are rocks that are plain on the outside but can have beautiful crystals on the inside.

  8. Amethyst Quartz Amethyst is a violet variety of quartz often used in jewelry