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Limestone is a sedimentary rock composed mostly of the mineral calcite and comprising about 15% of the Earth’s sedimentary crust. It is a basic building block of the construction industry (dimension stone) and a chief material from which aggregate, cement, lime and building stone are made. 71% of all crushed stone produced in the U.S. […]

Infrastructure and Construction Materials Guide — Gypsum

Commodity Description Gypsum is a versatile mineral with hundreds of uses for thousands of years. The earliest use of gypsum plaster dates to about 8000 BCE with the discovery of its use in Anatolia (Turkey). Gypsum plaster was used as early as 7000 BCE as a construction material in Egypt. Gypsum was first discovered and […]

Infrastructure and Construction Materials Guide — Dimension Stone

Commodity Description Dimension stone is a generalized term for rock materials used primarily for memorials, signs and external building facing as well as blocks for building of structures. Examples of these uses include cemetery headstones, statues, exteriors, commercial and residential signs, and large structures. There are structures using dimension stone in North America, Europe, India, […]

Infrastructure and Construction Materials Guide — Cement

The cement industry is in the middle of adjusting to supply chain disruptions and conflicts around the world that came with the Covid pandemic. The information in this page about the cement industry is particularly focused on the United States cement industry. All of the statistical data are from the USGS Mineral Commodities. The details […]

Infrastructure and Construction Materials Guide — Aggregates

Aggregates are sand, gravel and crushed stone. Other materials like slag and recycled concrete can be considered aggregates as well. Aggregates can be put in place as washed stone, mixed with cement for pouring concrete for paving or with asphalt for paving. Commodity Description Aggregates are a broad category of construction materials. In terms of […]

National Science Teaching Association (NSTA) 2023 Conference Atlanta

2023 NSTA NATIONAL CONFERENCE ON SCIENCE EDUCATION IN ATLANTA, GA MEC participated in the 3-day NSTA National Conference on Science Education held at the Georgia World Congress Center, Atlanta, GA, on March 23-25, 2023. MEC volunteers actively engaged with over 2500 teachers who visited the booth. Katie Kosloski, a mining engineer for Luck Stone, was […]

MEC News

MARCH 2024 2024 NSTA NATIONAL CONFERENCE ON SCIENCE EDUCATION – MARCH 21-23, 2024 The MEC made waves at the recent National Science Teaching Association (NSTA) National Conference on Science Education held in Denver, Colorado, March 21-23, 2024. MEC volunteers led by Richard Schwering handed out over 1200 free rock and mineral kits to teachers to […]

Earth Science Week

Each year, MEC partners with the American Geosciences Institute’s Earth Science Week (ESW) to provide educational resources across the globe at and in the ESW Toolkit. Participation in this initiative affords MEC the opportunity to reach a vast number of educators with education resources and to provide outreach materials to SME members and others […]