A narrow mass of rock intersecting other rocks, and filling inclined or vertical fissures not corresponding with the stratification; a lode; a dike; -- often limited, in the language of miners, to a mineral vein or lode, that is, to a vein which contains useful minerals or ores.
A fissure, cleft, or cavity, as in the earth or other substance.
To form or mark with veins; to fill or cover with veins.
A fracture that has been filled with mineral material.
A long, thin section of a mineral, usually in fibrous form, embedded in rock, called the surrounding rock. Usually caused by the filling in of the mineral in open spaces or cracks in the rock
A tabular rock body deposited in a fracture. Many ore minerals were deposited in veins when hot magma flowed through fractures.
A layer of ore between layers of rock.
A thin sheet-like igneous intrusion into a fissure.
small conduit within targer rock mass
(or “seam”) In mining, usually a quartz vein which is assayed for its gold content.
A deposit of foreign minerals within a rock fracture or joint.
A seam of minerals that forms when dissolved ions carried by water solutions precipitate in cracks.
A narrow, sheet-like body of minerals which has been intruded into a pre-existing rock.
a relatively narrow tabular mineralized structure
veinlet- tabular mineral deposit formed within or adjacent to faults or fractures by the (small) deposition of minerals from hydrothermal fluids ( for example quartz, quartz carbonate, pegmatite etc.).
Sheet-shaped mass of mineral material, usually cuts through the rock.
A zone or belt of mineralized rock lying within boundaries clearly separating it from neighboring rock. It includes all deposits of mineral matter found through a mineralized zone or belt coming from the same source, impressed with the same forms and appearing to have been created by the same processes. A mineralized zone having a more or less regular development in length, width, and depth to give it a tabular form and commonly inclined at a considerable angle to the horizontal. The term lode is commonly used synonymously for vein.
Mineral body in a horizontal, vertical or angled position.
A seam or lode of metallic-bearing ore through a rock.
An epigenetic mineral filling of a fault or other fracture in a host rock, in tabular or sheet like form, often with associated replacement of the host rock; a mineral deposit of this form and origin.
Tabular rock or mineral filling of a generally small crack such as a quartz vein. A product of chemical precipitation from a watery solution, in contrast to a dike crystallized from magma, although gradations exist.
A thin, sheet-like body of igneous rock or of minerals such as quartz, calcite, barite, etc., deposited in a crevice or fracture in a rock.
Fissure containing a deposit of ore.
A fissure, fault or crack in a rock filled by minerals that have travelled upwards from a deeper source.
an opening, fissure, or crack in rock, containing mineralized material.
A fissure, fault or crack in a rock filled by minerals that have travelled upwards from some deep source.
A sheet-like or tabular discordant mineralized body formed by complete or partial infilling of a fracture or fault within a rock.
A mineralized zone having a more or less regular development in length, width and depth which clearly separates it from neighboring rock.
Tabular or sheetlike body deposited in openings of fissures, joints or faults in the host rock;
A mineral deposit with definite boundaries that separate it from the surrounding rock.
Roughly parallel sided body formed by the alteration or replacement of minerals, often associated with a fracture.
A layer, seam, or narrow irregular body of mineral material that is different from the surrounding formation.
A mineral-filled fault or fracture.
In geology, a vein is a finite volume within a rock, having a distinct shape, filled with crystals of one or more minerals, which were precipitated from an (aqueous) fluid. Veins are formed by fluids carrying mineral constituents into a rock mass as a consequence of some form of hydraulic flow within the rock. Usually this is the result of hydrothermal circulation.