Luck Stone Quarry

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Luck Stone Quarry

• Augusta County
• Virginia

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Augusta County

• Augusta County is located in the Valley and Ridge
  
• Sedimentary rocks have folded or broken on a
  grand scale

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Rocks of Virginia
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Rocks of Luck Stone

• Dense black limestone with white calcite veins.
• Ancient shallow tropical sea
• Calcite veins were injected later by water moving
  through twists and folds in the rocks

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Edinburg Formation

• Ordovician Age (450 million years age)
• Black color indicates it was formed in an
  environment with little or no oxygen
• Fossils?? Probably not

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Life of the Ordovician
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Fossils of the Ordovician

• Most life in oceans
• Very little on land
• Sea Creatures
• First fish start
• appearing
• Many now extinct

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Rocks as Aggregates

• Aggregates is the term we use for rock that has
  been broken into small pieces.
• Different size of stones have different uses
• Form dust to riprap
• Stones are numbered according to size, the
  smaller the number the larger the stone

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Crushed Stone

• Crushed stone, one of the most accessible natural
  resources, is a major basic raw material used by
  construction, agriculture, and other industries
  that utilize complex chemical and metallurgical
  processes. 
• Despite the low value of its basic products, the
  crushed stone industry is a major contributor to
  and an indicator of the economic well-being of
  the Nation.

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Rocks Around Us

• Modern houses are built almost entirely from
  materials made from rocks.
• The bricks and roof tiles are made of clay
• The mortar that bonds the bricks is made from
  sand, lime and cement
• The foundations and blocks are made of concrete,
  a mixture of cement, aggregates, and water
• The plaster is made from gypsum
• The glass in the windows is made using sand

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Rock House
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Uses of Limestone

• Cut to shape
• As a building and ornamental stone
• Crushed
• To make concrete
• For the different layers in our roads
• Finely ground
• To make cement
• To add calcium to animal feeds
• To make lime for a variety of industrial and
  agricultural processes

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Riprap

• Largest stone available
• Provides erosion control
• Landscaping and
• architectural stone

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Max sizes 3/8 ½

• Used in asphalt surface- course mixes
• Under drain in highway construction

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Max Size ¾ 1

• Commercial and residential uses
• Asphalt course-base mix
• Touch up for stone driveways
• Ready-mix concrete

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Environmental Practices

• High pressure water sprays for process dust
  control
• Revegetation program on disturbed areas
• Burns its own used oil
• Primary crushers are located in pit area to
  reduce noise