Any natural deposit forming a part of the earth's crust, whether consolidated or not, including sand, earth, clay, etc., when in natural beds.
a naturally formed substance consisting of one or more minerals.
solid piece of geological material. May be a mineral or a gem or a leaverite.
An aggregate of one or more minerals that forms an appreciable part of the lithosphere.
Any material that makes up a large, natural, continuous part of earth's crust. See igneous rock, metamorphic rock, mineral, sedimentary rock.
A well-consolidated or lithified assemblage of grains of one or more minerals. Rocks are formed through igneous including hydrothermal, sedimentary, or metamorphic processes.
a combination of mineral matter of various compositions
A hard mass consisting of minerals.
(4) naturally formed, solid mass of one or more minerals, amorphous inorganic matter or organic matter. See also lithify.
Material made of an aggregate of minerals formed from solidified magma (igneous rock), by the recrystallization of pre-existing rocks (metamorphic rock) or from accumulations of mineral, rock or fossiliferous fragments or chemical elements (sedimentary rock).
a consolidated aggregate, naturally occurring, of mineral grains consisting of one or more mineral species (minerals and/or mineraloids) and having some degree of chemical and mineralogic constancy. Rocks are classified by mineral and chemical composition; the texture of the constituent particles; and also by the processes that formed them. popular
A rock is an aggregate of minerals, sometimes together with non-crystalline (i.e., non-mineral) natural materials.
a naturally formed material composed of one or more minerals.
A naturally formed aggregate of an indefinite mixture of naturally occurring substances, mainly minerals. Its composition may vary in containment of minerals and organic substances, and are never exact.
A rock is a solid, cohesive aggregate of one or more minerals or mineral-like materials (such as volcanic glass).
A naturally formed aggregate of usually inorganic materials from within the Earth.
natural collection of minerals in the solid state; usually hard and consisting of one, two, or more mineral varieties
a lump or mass of hard consolidated mineral matter; "he threw a rock at me"
a gift from nature, not a man-made creation
a material made of one or more minerals
a mineral, or aggregate of minerals, that forms an essential part of the earth's crust
a mineral or mixture of minerals
a mineral which has undergone extreme weathering and become very hard and compacted
an aggregate (a combination) of one or more minerals
an assemblage of minerals
a natural aggregate of different or the same minerals
a naturally formed combination of two or more minerals, either consolidated or not(except soil), with some degree of mineralogical consistency
a naturally formed solid material that makes up the earth's crust
a solid, cohesive, aggregate or one or more minerals
a solid, solid matter can be picked up and carried around without having to place it in a special container
a solid thing, at least on our time scale
Any naturally formed aggregate of one or more minerals, such as granite, shale, or marble.
Rocks are made of different kinds of minerals, or broken pieces of crystals, or broken pieces of rocks. Some rocks are made of the shells of once-living animals, or of compressed pieces of plants. Rocks are divided into three basic types, igneous, sedimentary and metamorphic, depending upon how they were formed. more details...
A naturally occurring mineral substance cohesively bound by chemical bonds and forming the basic structure of the earth's crust.
A relatively hard substance, naturally formed from minerals or petrified matter; can be grouped as one of three types -- igneous, metamorphic or sedimentary.
Rock is a hard natural substance made up of one or more minerals. e.g. limestone.
lithified combination of one or more minerals, or lithified undifferentiated material (e.g. obsidian), or lithified organic matter (e.g. coal)
Natural aggregates of one or more minerals.
a general term applied to the consolidated mineral materials which form the principal part of the crust of the earth
An integral part of the earth's crust composed of an aggregate of grains of one or more minerals. (Stone is the commercial term applied to quarry products.)
consolidated or unconsolidated solid mineral matter
an aggregate of interlocking or attached grains, each of which is typically composed of a single crystalline mineral.
It is a term for an indefinite mixture of naturally occurring substances, mostly minerals. The composition may vary in containment of minerals and organic substances, and they are never exact.
A rock is an aggregation of solid matter, a random conglomerate of minerals. The earth's crust is made of rock. There are three types of rock: igneous, sedimentary, and metamorphic. Petrology is the scientific study of rocks.
1. Geologically, any natural mass of earth material that has appreciable extent. 2. In engineering, solid natural material that requires mechanical or explosive techniques for removal. 3. In the quarry industries, the term stone is more common and means firm, coherent, relatively hard earth material.
A naturally occurring material composed of one mineral or, more often, a combination of minerals naturally hardened and consolidated into a solid mass.
" A consolidated or unconsolidated aggregate of minerals or organic materials". (Oxford Dictionary of Earth Sciences). Rocks can be made of a single type of mineral, or more than one mineral. For example, limestone is made (mostly) of calcite and quartzite is made just of quartz. Granite is made up of three main minerals: quartz, feldspar and mica.
a solid mixture of one or more minerals
description mixture of minerals Rocks
a combination of 2 or more minerals which have been joined either by heat, temperature, pressure, or chemical changes
a solid, made of one or more minerals
A solid, cohesive, aggregate of one or more crystalline minerals.
A coherent, naturally occurring solid, consisting of an aggregate of minerals or a mass of glass.
Any naturally formed, solid aggregate of one or more minerals.
An aggregate of minerals or organic matter, which may be consolidated or unconsolidated.
A rock is a naturally occurring aggregate of minerals and/or mineraloids. The Earth's crust (including the lithosphere) and mantle are formed of rock.