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2. Quarter minus - Wikipedia

   en.wikipedia.org/wiki/Quarter_minus

   Quarter minus is mostly used as filler aggregate for bigger aggregate, empty space between two different sized aggregate, vehicle parking grade, and landscape surfaces. A positive of using quarter minus as a landscape aggregate is that it does not provide a home for pests and does not decompose like other landscape aggregates like wood-chips ...

3. Mineral resource estimation - Wikipedia

   en.wikipedia.org/wiki/Mineral_resource_estimation

   Mineral resource estimation is used to determine and define the ore tonnage and grade of a geological deposit, from the developed block model.There are different estimation methods used for different scenarios dependent upon the ore boundaries, geological deposit geometry, grade variability and the amount of time and money available.

4. Rock mass rating - Wikipedia

   en.wikipedia.org/wiki/Rock_mass_rating

   A rock mass rating system provides a method of incorporating some of the complex mechanics of actual rocks into engineering design. Moreover, the system was the first to enable estimation of rock mass properties, such as the modulus of deformation, in addition to providing tunnel support guidelines and the stand-up time of underground excavations.

5. Crushed stone - Wikipedia

   en.wikipedia.org/wiki/Crushed_stone

   Crushed stone or angular rock is a form of construction aggregate, typically produced by mining a suitable rock deposit and breaking the removed rock down to the desired size using crushers. It is distinct from naturally occurring gravel , which is produced by natural processes of weathering and erosion and typically has a more rounded shape.

6. 21 Creative Ways to Use Rocks in Your Landscaping - AOL

   www.aol.com/21-creative-ways-rocks-landscaping...

   Here are 21 front yard landscaping ideas with rocks, stone, and mulch to get you started. For more landscaping inspiration: 8 5 Landscaping Ideas for an Enchanting Outdoor Space

7. Dimension stone - Wikipedia

   en.wikipedia.org/wiki/Dimension_stone

   Portugal produces 3 million tons of dimension stone each year. [10] According to the USGS, 2007 U.S. dimension stone production was 1.39 million tons valued at $275 million, compared to 1.33 million tons (revised) valued at $265 million in 2006. Of these, granite production was 453,000 tons valued at $106 million in 2007 and 428,000 tons valued ...