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Minecraft "Perhaps the biggest stroke of genius in Minecraft". [67] This red mineral serves as in-game wiring, letting players lay down logic circuitry that controls pistons, minecarts and other dynamic elements in the game. [67] It is found as ore in deep caves.
This template provides a link to a subject's article on Bulbapedia, a Pokémon-centric wiki. To use it, format it as such: {{Bulbapedia | subject name | 2 }} Parameter 2 should be left empty if the subject is not a Pokémon species (excluding MissingNo. and other glitch species). If left empty, it will fetch the subject's P4845 property from ...
Hardstone is a non-scientific term, mostly encountered in the decorative arts or archaeology, that has a similar meaning to semi-precious stones, or gemstones. [1] Very hard building stones, such as granite, are not included in the term in this sense, but only stones which are fairly hard and regarded as attractive – ones which could be used in jewellery.
The local names for the soapstone vary: in Vermont, "grit" is used, in Georgia "white-grinding" and "dark-grinding" varieties are distinguished, and California has "soft", "hard", and "blue" talc. [35] Also: Combarbalite stone, exclusively mined in Combarbalá, Chile, is known for its many colors. While they are not visible during mining, they ...
A concretion is a hard and compact mass formed by the precipitation of mineral cement within the spaces between particles, and is found in sedimentary rock or soil. [1] Concretions are often ovoid or spherical in shape, although irregular shapes also occur.
Ironstone (sandstone with iron oxides) from the Mississippian Breathitt Formation, Mile Marker 166, I-64, Kentucky. Ironstone is a sedimentary rock, either deposited directly as a ferruginous sediment or created by chemical replacement, that contains a substantial proportion of an iron ore compound from which iron (Fe) can be smelted commercially.
It is widely believed by stone tool experts that the technology to treat silcrete by burying under a hot fire was known 25,000 years ago in Europe. Heating changes the stone structure making it more easily flaked. [4] This process may have been the first use of so-called pyrotechnology by early mankind. [5] [6]
In archaeology, a hammerstone is a hard cobble [1] used to strike off lithic flakes from a lump of tool stone during the process of lithic reduction. [2] The hammerstone is a rather universal stone tool which appeared early in most regions of the world including Europe , India [ 3 ] and North America .