Contact Us Haulers & Suppliers Privacy Policy Facility Locator Products Investors Sustainability About Us Careers eRocks® Products SAFETY DATA SHEETS Name Description Data Sheets All Purpose Sand All Purpose Sand Amphibolite A heavy, dark colored, medium to coarse grained rock, formed from other rocks as they come into contact with a molten rock mass. Basalt A very fine grained extrusive igneous rock with less that 20% quartz. Extrusive formed from the rapid cooling of basaltic lava exposed at, or very near, the surface. Basalt Caliche A hardened natural cement of calcium carbonate binding other materials such as gravel, sand, clay and silt. Occurs generally in arid or semi-arid regions of the western USA. Crushed Caliche Cement A powder of alumina, silica, lime, iron oxide, and magnesium oxide burned together in a kiln and finely pulverized and used as an ingredient of mortar and concrete. Click here for information about our Cement products. Lightweight Cement Masonry Cement Portland Cement Cement Treated Base Cement-Treated Base Cold-Mix/Pre-Coat Cold Mix / PreCoat is a mixture of mineral aggregate and modified liquid asphalt binder mixed together in specific proportions, placed, and compacted at ambient temperatures. Click here for information about our Asphalt products. Cold-Mix Pre-Coat Crude Oil Petroleum as it occurs naturally, as it comes from an oil well, or after extraneous substances (as entrained water, gas, and minerals) have been removed. Crude Oil Dolomite Also known as "dolostone", is a sedimentary rock composed primarily of the mineral dolomite, CaMg(CO2)3. It is found in sedimentary basins worldwide. It is thought to form by the alteration of lime mud and limestone by magnesium-rich groundwater. Limestone Feldspathic Sand Feldspathic Sand Gabbro A heavy, coarse grained rock, composed of mostly dark colored minerals with little quartz, formed as magma cools below the surface of the earth. Basalt Gneiss A common medium to coarse grained and widely distributed type of rock formed by metamorphic processes from pre-existing formations that were originally either igneous or sedimentary rocks. It is often identified by alternating darker and lighter colored bands, called "gneissic banding" which describes texture, not composition. Granite Granite An igneous, light colored, coarse grained rock, composed mostly of quartz and feldspar, formed from a body of magma as it cools. Granite Granite - Porcupine Mountain Granite-Porcupine Mountain Granite-Porcupine Mountain (FR) Gravel An unconsolidated mixture of rock fragments that is coarser than sand. Sand and Gravel Gypsum A widely distributed mineral consisting of hydrous calcium sulfate that is used especially as a soil amendment and in making plaster of paris. Gypsum Hot Mixed Asphalt Hot Mixed Asphalt is a mixture of mineral aggregate and liquid asphalt binder mixed together in specific proportions at elevated temperatures then placed and compacted prior to cooling. Click here for information about our Asphalt products. Hot Mixed Asphalt Limestone A fine to coarse grained sedimentary rock, formed from transportation and compaction of calcium carbonate sediment from the shells of sea organisms or by the direct chemical precipitation of calcium carbonate. Limestone Limestone Rock Asphalt (LRA) A porous limestone, once saturated with petroleum, that has since evaporated, leaving behind dark asphalt tar within the voids of the rock. LRA Limestone Rock- Crude Oil Mix (LRC) LRC Marble Formed from limestone that has been subjected to heat and pressure from metamorphic processes. Limestone Natural Sand Natural Sand Pegmatite Light colored, very coarse grained rock, formed from magma that has cooled over a long period of time giving the individual crystals in the rock time to grow quite large. Granite Pressur-Seal Pressur-Seal Quartzite Light to dark colored rock, formed from sandstone, subjected to heat and pressure from metamorphic processes. Quartzite Ready-Mix Click here for information about our Ready Mix products. Ready-Mix Sand and Gravel A naturally occurring granular material ranging in size from 0.002 to 4 inches being formed as a result of the erosion and weathering of rocks. Composition is dependent on the source material. Sand and Gravel Sandstone A sedimentary rock consisting of usually quartz sand united by some cement (as silica or calcium carbonate). Sandstone Shale Shale Rock Slate A dark to light colored rock, formed from shale, subjected to heat and pressure from metamorphic processes. Shale Rock Spodumene Fines Spodumene Fines Syenite A coarse-grained intrusive igneous rock that has basically the same general composition as granite but with the quartz either absent or present in relatively small amounts. Granite TrapRock Light to dark colored, fine grained rock, formed as molten rock flows out of the earth as lava and is cooled quickly. "Trap rock" is not a geological term. It is a term used in the mining industries to refer to any number of dark-colored igneous rocks that are crushed and used, primarily, for road construction. The most common rock types of trap rock are gabbro and basalt. Basalt Volcanic Tuff A rock composed of compacted volcanic ash in sizes from fine to coarse. Volcanic Tuff Tiller Corporation / Martin Marietta Central Division Name Description Data Sheets Hot Mix Asphalt A combination of stone, sand, or gravel bound together by asphalt cement. Hot Mix Asphalt Natural Aggregate Rock fragments that are naturally formed but may go through operations of crushing, washing, and sizing. Natural Aggregate Recycled Base Material Recycled material classified as Class 5, Class 6, and recycle base. Recylced Base Material Tack A slow set asphalt emulsion that may be used for a variety of pavement applications. Slow Set Asphalt Emulsion Cookie Policy We use cookies to improve the user experience and analyze website traffic. By continuing to the site, you consent to store on your device a small piece of information about your visit. Please read our Privacy Policy and Cookie Policy for further details. ACCEPT An American-based company and a leading supplier of building materials, Martin Marietta teams supply the resources necessary for building the solid foundations on which our communities thrive. OUR FACILITIES With over 500 locations to serve you, Martin Marietta products are always nearby. 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