Earth sciences, aggregrate has three possible meanings.
mineralogy and petrology, an aggregate is a mass of mineral crystals, mineraloid particles or rock particles.  Examples are  dolomite, which is an aggregate of crystals of the mineral dolomite, and  rock gypsum, an aggregate of crystals of the mineral gypsum.  Lapis lazuli is a type of rock composed of an aggregate of crystals of many minerals including lazurite, pyrite, phlogopite, calcite, potassium feldspar, wollastonite and some sodalite group minerals.
construction industry, an aggregate (often referred to as a construction aggregate) is sand, gravel or crushed rock that has been mined or quarried for use as a building material.
pedology, an aggregate is a mass of soil particles. If the aggregate has formed naturally, it can be called a ped; if formed artificially, it can be called a clod.
Construction aggregate examples
Use in industry
Aggregates are used extensively in the construction industry
 Often in making  concrete, a construction aggregate is used,
with about 6 billion tons of  concrete produced per year.
Neuendorf, K.K.E.; Mehl, Jr., J.P.; Jackson, J.A., eds. (2005). Glossary of Geology (5th ed.). Alexandria, Virginia: American Geological Institute. p. 11.
Abel, Mara; Lorenzatti, Alexandre; Rama Fiorini, Sandro; Carbonera, Joel (2015). . PNEC Conferences. Houston. p. 3 Ontological analysis of the lithology data in PPDM well core model . Retrieved . 27 March 2017
Teichert, Curt (1965). Devonian Rocks and Paleogeography of Arizona (US Geological Survey Professional Paper 464) (PDF). Washington DC: USGS. p. 150.
^ a b
Jessica Elzea Kogel (2006). Industrial Minerals & Rocks: Commodities, Markets, and Uses (7th ed.). SME. p. 522. ISBN . 978-0-87335-233-8
T. Calligaro; Y. Coquinot; L. Pichon; B. Moignard (2011). "Advances in elemental imaging of rocks using the AGLAE external microbeam". Nuclear Instruments and Methods in Physics Research B. 269 (20): 2364–2372. doi: 10.1016/j.nimb.2011.02.074.
Allaby, Ailsa; Allaby, Michael (1999). A Dictionary of Earth Sciences (2nd ed.). Oxford: Oxford University Press. ISBN . 0-19-280079-5
^ Same Day Aggregates:
Types of Aggregates - Same Day Aggregates, accessdate: March 25, 2017
^ Indiana Mineral Aggregates Association Carmel, IN:
What are aggregates? - Indiana Mineral Aggregates Association Carmel, IN, accessdate: March 25, 2017
^ Introduction (1): What are Aggregates? « Herefordshire & Worcestershire Earth Heritage Trust:
Introduction (1): What are Aggregates? « Herefordshire & Worcestershire Earth Heritage Trust, accessdate: March 23, 2017
^ Define Aggregate at Dictionary.com:
aggregate, accessdate: March 23, 2017
Qasrawi, Hisham; Marie, Iqbal (2013). "Towards Better Understanding of Concrete Containing Recycled Concrete Aggregate". Advances in Materials Science and Engineering. 2013: 1–8. doi: 10.1155/2013/636034.