These may be " natural alloys " manufactured by smelting zinc rich copper ores in reducing conditions.

These electronegative elements are strongly associated with metal-bearing minerals, where they have formed water-insoluble compounds with the metals in the ores.

These mines yield uranium ores, which are then processed to produce yellowcake, crucial to the nuclear power industry ( as well as aspirational nuclear powers ).

These factors were, in turn, influenced by the environment, such as the types of ores available, the types of trees nearby and the types of wood which was in those trees.

These minerals are concentrated from crushed ores to the level of 10 – 15 % copper by froth flotation or bioleaching.

These produced blast-furnace temperatures high enough to melt partially refined ores, resulting in cast iron.

These deposits are commonly referred to as " direct shipping ores " or " natural ores ".

These ores are beneficiated essentially similar to banded iron formation ores, but usually are more easily upgraded via crushing and screening.

These ores caused a burning sensation to those who handled them.

These attributes can include access to natural resources, such as high grade ores or inexpensive power, or access to highly trained and skilled personnel human resources.

These flanking reefs were points of concentration for later ore-bearing fluids which formed the rich lead-zinc ores that have been and continue to be mined in the area.

These ores were mined wherever they were recognized.

These fakes use a variety of means to achieve the glassy green silica look as well as mild radioactivity, however, only trinitite from a nuclear explosion will contain certain neutron activation products that are not found in naturally radioactive ores and minerals.

These ores typically contain cuprite ( red copper oxide ) and / or copper carbonate in a matrix of red or gray sandstone.

These refractory ores require pre-treatment in order for cyanidation to be effective in recovery of the gold.

These higher production costs made mining and smelting anything but the highest grade silver ores prohibitively expensive, just as the availability of high grade ores was in decline.

These organosulfur compounds are important in two areas, the production of cellophane and related polymers from cellulose and secondly in mining for the extraction of certain ores.

These early discoveries of mercury-bearing ores did not become viable mercury producers until 1872, when the price of mercury and improved smelting methods resulted in the establishment of many mines in Lake and Napa counties.

These lectures formed the nucleus of a general survey of English development which took form afterward as A History Of England.

These principles, however, will not be served by violence in any form.

These conceptions and the manner in which they were transposed into poetry or engendered by poetic form are intrinsic to western life from the time of Aeschylus to that of Shakespeare.

These two pieces of information for each dictionary form that is matched by a text form constitute the table of dictionary usage.

These two recollections form the frame around a series of experiences and sights which, to me at least, symbolize the extremes in the aesthetic as well as ethical conflict between materialism and humanism.

These theoretical relationships are more clearly illustrated in Fig. 7 and their sum can be seen to correlate in form with practical measurements made with the Hesiometer as illustrated in the first portion of Fig. 5 for the cutting mechanism.

These oils develop hard, smooth films when they dry and form resinlike substances.

These time scales are denoted in the form UTC ( NPL ) in the UTC form, where NPL in this case identifies the National Physical Laboratory, UK.

These protists live as individual amoebae until starved, at which point they aggregate and form a multicellular fruiting body in which some cells sacrifice themselves to promote the survival of other cells in the fruiting body.

These free-standing statues were usually marble, but also the form rendered in limestone, bronze, ivory and terracotta.

These form thirteen established families ( plus perhaps Shompen, which is poorly attested, as a fourteenth ), which have traditionally been grouped into two, as Mon – Khmer and Munda.

These are long, cylindrical, limbless animals with a snake or worm-like form.

These provinces may take the form of national churches ( such as in Canada, Uganda, or Japan ) or a collection of nations ( such as the West Indies, Central Africa, or Southeast Asia ).

These holes collectively make up what is known as the selenizone which form as the shell grows.

Galileo announced his discovery that Venus had phases like the Moon in the form " Haec immatura a me iam frustra leguntur-oy " ( Latin: These immature ones have already been read in vain by me-oy ), that is, when rearranged, " Cynthiae figuras aemulatur Mater Amorum " ( Latin: The Mother of Loves Venus imitates the figures of Cynthia the moon ).

These early human cultures later interpreted these spirits to be present in animals, the living plant world, and even in natural objects in a form of animism.

These experiments also led to a number of patents: for example, he invented a new form of laminated bent-plywood furniture in 1932.

These illuminations were applied to other works besides the Quran, and it became a respected art form in and of itself.

These early Japanese lamellar armours took the form of a sleeveless jacket and a helmet.

These points form a line, and y = x is said to be the equation for this line.

These form the following five taxonomic groups:

These guitars are most commonly used by swing and jazz players and often incorporate electronics in the form of a pickup.

These realities form a " composite faithfulness " and are ( i ) " perseverance in the apostolic doctrine "; ( ii ) " the will to proclaim God's word "; ( iii ) " communion in the fundamental continuity of the Church, the Body of Christ, the faithful celebration of Baptism and the Eucharist "; ( iv ) " succession in the laying on of hands, the sign of ministerial continuity ".