Most agates occur as nodules in volcanic rocks or ancient lavas where they represent cavities originally produced by the disengagement of volatiles in the molten mass which were then filled, wholly or partially, by siliceous matter deposited in regular layers upon the walls.

Most macroscopic inorganic solids are polycrystalline, including almost all metals, ceramics, ice, rocks, etc.

Most of the beaches consist of either grass, rocks, or the silty sand that also makes up most of the bottom of the lake.

Most achondrites are also ancient rocks, and are thought to represent crustal material of asteroids.

Most rocks, due to their components, have a certain, but low, level of radioactivity.

Most collectibles are man-made commercial items, but some private collectors collect natural objects such as birds ' eggs, butterflies, rocks, and seashells.

Most of the islands have a bedrock formed from ancient metamorphic rocks and the climate is mild and oceanic.

Most authors presently use the term " mudrock " to refer to all rocks composed dominantly of mud.

Most sedimentary rocks contain either quartz ( especially siliciclastic rocks ) or calcite ( especially carbonate rocks ).

Most of the rocks forming the surface of the present High Atlas were deposited under the ocean at that time.

Most live in freshwater, and form an important component of the algal scum that grows on or near plants, rocks, and various debris.

Most surviving Archean rocks are metamorphic or igneous.

Most of the fossil echinoids from the Paleozoic era are incomplete, consisting of isolated spines and small clusters of scattered plates from crushed individuals, mostly in Devonian and Carboniferous rocks.

Most of these rocks are clastics ( conglomerate, sandstone, shale ), and there is little or no limestone exposed at the surface.

Most geologists now accept the theory that the older rocks at the center of the uplift are a result of this deep seated igneous activity.

Most crustal rocks formed before 2. 5 billion years ago are located in cratons.

Most young humans have been said to play with whatever they can find, such as pine cones and rocks.

Most commonly, an escarpment is a transition from one series of sedimentary rocks to another series of a different age and composition.

Most of the highest ground is formed by the masses of granite which have been intruded into the Ordovician and Silurian rocks ; the Criffel mass lies about Dalbeattie and Bengairn, another mass extends east and west between the Cairnsmore of Fleet and Loch Ken, another lies northwest and southeast between Loch Doon and Loch Dee and a small mass forms the Cairnsmore of Carsphairn.

Most of the terrain, except for indestructible rocks, may be dug or destroyed by explosions.

Most of the base of the mountain lies in the Tsaté nappe, a remnant of the Piedmont-Liguria oceanic crust ( ophiolites ) and its sedimentary rocks.

Most types of igneous rocks may display some degree of porphyritic texture.

Most types of igneous rocks may display some degree of porphyritic texture.

Most other desserts are fruit in some form, fresh fruits once daily at least, sometimes at snack time.

Most of Aristotle's work is probably not in its original form, since it was most likely edited by students and later lecturers.

Most of the pilings that form the foundation of Venice were made from alder trees.

Most often the other technique is some form of chromatography.

Most of this comes in the form of snow during the winter.

Most beadwork takes the form of jewelry or other personal adornment, but beads are also used in wall hangings and sculpture.

Most elite BBSes used some form of new user verification, where new users would have to apply for membership and attempt to prove that they were not a law enforcement officer or a lamer.

Most SDP members voted in favour of the merger, but SDP leader David Owen objected and continued to lead a " rump " SDP, with the merger of the two parties being completed in March 1988 to form the Social and Liberal Democrats, becoming the Liberal Democrats in October 1989.

Most pop standard and jazz ballads are built from a single, introductory verse ; usually around 16 bars in length, and ending on the dominant ; the chorus or refrain, usually it is 16 or 32 bars long, and in AABA form ( though other forms such as ABAC are not uncommon ).

Most of these institutes focus on a form of economics called macroeconomics which keeps its eyes on things such as inflation: the rate at which money loses its value over time ; growth: how much money a government has and how quickly it accrues money ; unemployment, and rates of trade between other countries.

Most of his data is in the form of anecdotes and speculations ...

:: Most modern relational databases include active database features in the form of database trigger.

Most home computer DOS ' es were stored on a floppy disk always to be booted at start-up, with the notable exception of Commodore, whose DOS resided on ROM chips in the disk drives themselves ( the computer itself had no DOS, just a form of a BIOS for communicating with peripherals ).

Most Disciple congregations practice believer's baptism in the form of immersion, believing it to be the form used in the New Testament.

Most engineering projects involve some form of documentation and strong written communication skills are therefore very important.

Most Ericaceae ( excluding the Monotropoideae, Pyroloideae, and some Styphelioideae ) form a distinctive mycorrhizae, where fungi grow in and around the roots and provide the plant with nutrients.

Most people are likely familiar with the corrosion of iron, in the form of reddish rust.

Most churches in the Evangelical Lutheran Church in America, the largest Lutheran denomination in the United States, also practice their own form of open communion, provided those who receive are baptized and believe in the Real Presence.

Most fault surfaces do have such asperities and this leads to a form of stick-slip behaviour.

Most earthquakes form part of a sequence, related to each other in terms of location and time.

Most tropical cyclones form on the side of the subtropical ridge closer to the equator, then move poleward past the ridge axis before recurving into the main belt of the Westerlies.

Most obviously, the musical film was born ; the first classic-style Hollywood musical was The Broadway Melody ( 1929 ) and the form would find its first major creator in choreographer / director Busby Berkeley ( 42nd Street, 1933, Dames, 1934 ).

Most cooperative games are presented in the characteristic function form, while the extensive and the normal forms are used to define noncooperative games.

Most of the construction sector is dominated by government in the form of public works.