sedimentary
Limestone Nodules or Chert
Sedimentary rock fragment
AI-generated identification · may be incorrectHardness varies from 3 to 7 depending on mineral composition, earthy to dull luster, typically light tan or beige color.
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Physical properties
Hardness varies from 3 to 7 depending on mineral composition, earthy to dull luster, typically light tan or beige color.
Formation & geological history
Formed through the accumulation of organic or chemical sediment in marine environments over millions of years.
Uses & applications
Used primarily in local collections, educational purposes, and occasionally crushed for aggregate.
Geological facts
Small weathered rock fragments like this are common in surface soils and riverbeds worldwide.
Field identification & locations
Identify by its pale, weathered exterior and irregular, nodular shape. Found globally in sedimentary strata.
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