sedimentary
Chert
Chert is a hard, fine-grained sedimentary rock made mostly of microcrystalline quartz. It has been used for tools and construction throughout history.
Hardness 6.5–7India
Sedimentary
Explore all stones in the Sedimentary family. This mineral group includes 8 varieties.
8stones found
Type:rock
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sedimentary
Coal
Coal is a black or brownish-black sedimentary rock formed from ancient plant remains, primarily used as a fuel source.
India
sedimentary
Conglomerate
Conglomerate is a coarse-grained sedimentary rock made of rounded clasts bound by a matrix. It forms in high-energy environments like rivers.
India
sedimentary
Dolomite
Dolomite is a sedimentary carbonate rock mainly made of the mineral dolomite, often resembling limestone.
Hardness 3.5–4India
sedimentary
Gypsum Rock
Gypsum rock is a soft, sedimentary rock made primarily of calcium sulfate. It is widely used in construction and agriculture.
Hardness 1.5–2India
sedimentary
Limestone
Limestone is a sedimentary rock primarily made of calcium carbonate, often formed from marine life remains.
Hardness 3–4India
sedimentary
Sandstone
Sandstone is a clastic sedimentary rock composed mainly of sand-sized mineral grains. It is widely used in construction and landscaping.
Hardness 6–7India
sedimentary
Shale
Shale is a fine-grained sedimentary rock composed mainly of clay minerals and silt-sized particles. It is known for its ability to split into thin layers.
Hardness 3–3.5India