Search results
Results from the WOW.Com Content Network
Limestone (calcium carbonate CaCO 3) is a type of carbonate sedimentary rock which is the main source of the material lime. It is composed mostly of the minerals calcite and aragonite, which are different crystal forms of CaCO 3. Limestone forms when these minerals precipitate out of water containing dissolved calcium. This can take place ...
Poros stone is a lightweight, soft, marly limestone that was widely used in construction and statues of Ancient Greece. [1] There is no precise definition of the term, although its roots go to antiquity, [2] when it was used to designate any porous building rock, [3] regardless of its origin, [4] mostly in contrast with marble. In the 20th ...
Carboniferous Limestone – Limestone deposited during the Dinantian Epoch of the Carboniferous Period; Coquina – Sedimentary rock that is composed mostly of fragments of shells; Coral rag – Limestone composed of ancient coral reef material; Chalk – Soft carbonate rock; Fossiliferous limestone – Limestone containing fossils
The Pilate stone is a damaged block (82 cm x 65 cm) of carved limestone with a partially intact inscription attributed to Pontius Pilate, a prefect of the Roman province of Judaea from AD 26 to 36. It was discovered at the archaeological site of Caesarea Maritima in 1961.
This limestone has been used since Roman times in Slovenia, with artefacts crafted from this stone including funerary markers, altars, and boundary stones. The limestone was transported along the Ljubljanica river to Emona (now Ljubljana), where it featured prominently in major Roman structures. When the Roman Empire fell in the 5th century AD ...
The Umm Leisun inscription (Georgian: უმ ლეისუნის წარწერა, romanized: um leisunis ts'arts'era) is an Old Georgian limestone tombstone slab.It has a five-line [1] inscription written in the Georgian Asomtavruli script and was discovered in 2002, after the renewal of 1996 [2] excavation at a Georgian monastery of the Byzantine period, in the neighborhood of Umm ...
Zechstein dolomites crop out near the coast of County Durham, England where they are known as the Magnesian Limestone. Just above the base of the Zechstein formation is a fairly thin layer of shale, or slate, where it has been metamorphized, known as the kupferschiefer for its high copper content. In its unmodified form, this layer is high in ...
In the lime industry, limestone is a general term for rocks that contain 80% or more of calcium or magnesium carbonate, including marble, chalk, oolite, and marl.Further classification is done by composition as high calcium, argillaceous (clayey), silicious, conglomerate, magnesian, dolomite, and other limestones. [5]