Limestone Aggregate
Image: <a href="//commons.wikimedia.org/wiki/User:Trougnouf" title="User:Trougnouf">Trougnouf (Benoit Brummer)</a> (CC BY 4.0)
Mineral NameLimestone Aggregate
Chemical FormulaCaCO3 (primary mineral: calcite)
Mohs Hardness3
Streak ColorWhite
CleavagePerfect rhombohedral (for calcite, not visible in aggregate)
FractureUneven to conchoidal
Specific Gravity2.71
Colorsdark grey, grey
TransparencyOpaque
Type LocalityAntoing, Belgium
Mineral GroupCarbonates (as the primary mineral group in limestone)
Usesroad construction, concrete aggregate, cement production, building material
Associated Mineralscalcite, dolomite, quartz, clay minerals
Raritycommon
Description
Piles of dark grey, angular crushed rock aggregate, likely limestone, being processed at a road material works.
Geological Context
Limestone is a sedimentary rock primarily composed of calcium carbonate, formed from the accumulation of marine organisms' shells and skeletons. It is extensively quarried and crushed for use as aggregate in civil engineering and construction.
