Stone Traprock Ore refers to a type of basalt or diabase rock that is crushed and used primarily as construction aggregate. Here’s a detailed breakdown:
1. What is Traprock?
– Traprock (or trap rock) is a dense, fine-grained, dark-colored igneous rock, typically basalt or diabase.
– It forms from cooled lava flows and is known for its durability and hardness.
– The name comes from the Swedish word *”trappa”* (meaning “step”), due to its step-like appearance in quarries.
2. Uses of Crushed Traprock
– Road Construction: Used as a base material for highways due to its strength.
– Railroad Ballast: Provides stability for railroad tracks.
– Concrete & Asphalt Aggregate: Enhances durability in paving and building materials.
– Erosion Control: Used in riprap for shoreline and riverbank protection.
– Agricultural Lime: Some types can be ground into 
icultural lime to neutralize acidic soils.
3. Mining & Processing
– Mined in large quarries using blasting and crushing equipment.
– Processed into various sizes (e.g., #57 stone, riprap, or fine aggregates).
– Major U.S. producers include states like New Jersey, Pennsylvania, and Virginia.
4. Economic Importance
– A key material in infrastructure projects due to its longevity.
– Often preferred over limestone or granite for high-wear applications.
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