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Virtual Rock Collection by Maria and Sam

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Virtual Rock Collection. by Maria and Sam. Pink Calcite Crystal. - PowerPoint PPT Presentation

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Page 1: Virtual  Rock Collection

Virtual Rock

Collectionby

Maria and Sam

Page 2: Virtual  Rock Collection

Pink Calcite CrystalColor: 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 formsTransparency: 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.

Page 3: Virtual  Rock Collection

Calcite as ChalkWhite Cliffs of Dover UK

Page 4: Virtual  Rock Collection

Calcite Stalactites and Stalagmites

Page 5: Virtual  Rock Collection

Quartz Crystals Drawing

Page 6: Virtual  Rock Collection

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.

Page 7: Virtual  Rock Collection

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

inside.

Page 8: Virtual  Rock Collection

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