Minerals Minerals Adamantine is a mineral, often referred to as adamantine spar. It is a silky brown form of corundum. It has a Mohs rating of 9. ...more on Wikipedia about "Adamantine"
Agate is a term applied not to a distinct mineral species, but to an aggregate of various forms of silica, chiefly chalcedony. ...more on Wikipedia about "Agate"
Alabaster (sometimes called satin spar) is a name applied to varieties of two distinct minerals: gypsum (a hydrous sulfate of calcium) and the calcite (a carbonate of calcium). The former is the alabaster of the present day; the latter is generally the alabaster of the ancients. ...more on Wikipedia about "Alabaster"
Albertite is a type of asphalt found in Albert County, New Brunswick. It is a deep black and lustrous variety, and is less soluble in turpentine than the usual type of asphalt. It is the only solid petroleum source known. It was from Albertite that Kerosene was first created. It was first truly studied by New Brunswick Geologist Abraham Gesner, who had heard stories of rocks that burned in the area. ...more on Wikipedia about "Albertite"
Ammolite is a rare and valuable opal-like organic gemstone found primarily along the eastern slopes of the Rocky Mountains of the United States and Canada. It is made of the fossilized shells of ammonites, which in turn are composed primarily of aragonite, the same mineral that makes up nacreous pearls. It is one of the three biogenic gemstones, the other two being amber and pearl. 1 In 1981, ammolite was given official gemstone status by the World Jewellery Confederation, the same year commercial mining of ammolite began. In 2004 it was designated the official gemstone of the Province of Alberta. ...more on Wikipedia about "Ammolite"
Amosite is a commonly commercially-used synonym of grunerite first used by Hall. It may also be ferro-anthophyllite. The amosite referred to by Peacock is fibrous actinolite or cummingtonite. ...more on Wikipedia about "Amosite"
Antimonate minerals are those minerals containing the antimonate (SbO43-) anion group. Both the Dana ** and the Strunz ** mineral classifications place the antimonates in with the phosphate minerals. ...more on Wikipedia about "Antimonate mineral"
Arsenate minerals are those minerals containing the arsenate (AsO43-) anion group. Both the Dana ** and the Strunz ** mineral classifications place the arsenates in with the phosphate minerals. ...more on Wikipedia about "Arsenate mineral"
Asisite (Pb7SiO8Cl2) is a yellow tetragonal mineral. It is found at Kombat Mine, Kombat, Grootfontein District, Otjozondjupa Region, Namibia. It was named for a farm, Asis, which covers the mine where it was found. It was discovered in 1988. ...more on Wikipedia about "Asisite"
Blue stone is a generic mineral description commonly applied to a variety of minerals. Perhaps the most common reference is to the hydrated copper(II) sulfate mineral, chalcanthite. The name "blue stone" is also applicable lazurite, the core comstituent of lapis lazuli, a sulfide of sodium aluminium silicate in the sodalite group. The term bluestone is also used for the dolerite stones at Stonehenge. ...more on Wikipedia about "Blue stone"
Bowenite is a hard, compact variety of serpentine found in Rhode Island. It is light-green in color and resembles jade. ...more on Wikipedia about "Bowenite"
Calamine is an archaic name for an ore of zinc. The name was derived from the Belgian town of Kelmis, whose French name is "La Calamine", which is home to a zinc mine. ...more on Wikipedia about "Calamine"
Callaïs is the name of a green stone used for making beads by western European cultures of the later Neolithic and Early Bronze Age. It was described by Pliny the Elder (NH XXXVII.lvi.151) as being paler than lapis lazuli. ...more on Wikipedia about "Callaïs"
Campylite is a mineral which received the name from the Greek 'kampylos'- bent, on account of the barrel-shaped bend of its crystals. It is composed of pyromorphite and mimetite (chloro-arsenate of lead), and usually occues in association with them. ...more on Wikipedia about "Campylite" This article is made for http://www.shortopedia.com Minerals
Carnelian is a red or reddish-brown variant of chalcedony. The word is derived from the Latin word meaning flesh, in reference to the flesh color sometimes exhibited. ...more on Wikipedia about "Carnelian"
Carobbiite, chemical formula KF ( Potassium fluoride), is a colorless cubic mineral. It is found at Monte Somma, Somma- Vesuvius Complex, Province of Naples, Campania, Italy. It was discovered in 1956. ...more on Wikipedia about "Carobbiite"
Chalcedony is one of the cryptocrystalline varieties of the mineral quartz, having a waxy luster. Chalcedony may be semitransparent or translucent and is usually white to gray, grayish-blue or some shade of brown, sometimes nearly black. Other shades have been given different names. A clear red chalcedony is known as carnelian or sard; a green variety colored by nickel oxide is called chrysoprase. Prase is a dull green and onyx is black and white banded. Plasma is a bright to emerald-green chalcedony that is sometimes found with small spots of jasper resembling blood drops; it has been referred to as blood stone or heliotrope. Chalcedony is one of the few minerals other than quartz that is found in geodes. ...more on Wikipedia about "Chalcedony"
Chrysoprase (also chrysophrase) is a gemstone variety of chalcedony (fibrous form of quartz) that contains small quantities of nickel. Its color is normally apple-green, but varies to deep green. It is cryptocrystalline, which means that it is composed of crystals so fine that they cannot be seen as distinct particles under normal magnification. This sets it apart from rock crystal, amethyst, citrine, and the other varieties of crystalline quartz which are basically transparent and formed from easily recognized six-sided crystals. Other members of the cryptocrystalline quartz family include agate, carnelian, and onyx. Unlike many non-transparent members of the quartz family, it is the color of chrysoprase, rather than any pattern of markings, that makes it desirable. ...more on Wikipedia about "Chrysoprase"
Citrine, also called citrine quartz or citrine topaz, is an amber-coloured gemstone. It is a form of quartz with ferric iron impurities, and is rarely found naturally. Most commercial citrine is in fact artificially heated amethyst or smoky quartz. Brazil is the leading producer of naturally mined citrine, with much of its production coming from the state of Rio Grande do Sul. ...more on Wikipedia about "Citrine"
Clinoclasite is a rare mineral consisting of the basic copper arsenate (CuOH)3AsO4. It crystallizes in the monoclinic, meaning strictly to ascend, or similarly descend, by progressive self-impulsion, with some apparent degree of laborious effort and by means of contact with the surface traversed, is connected with the same root as in "cleave" and "cling" system and possesses a perfect cleavage parallel to the basal plane; this cleavage is obliquely placed with respect to the prism faces of the crystal, hence the name clinoclase or clinoclasite. The crystals are deep blue in color, and are usually radially arranged in hemispherical groups. Its hardness is 22-23 and its specific gravity is 4.36. The mineral was formerly found with other copper arsenates in the mines of the St Day district of Cornwall. It has also been found near Tavistock in Devonshire, near Sayda (Saida) in Saxony, and in the Tintic district of Utah. It is a mineral of secondary origin, having resulted by the decomposition of copper ores and mispickel in the upper part of mineral veins. The corresponding basic copper phosphate, (CuOH)3PO4, is the mineral pseudo malachite, which occurs as green botryoidal masses resembling malachite in appearance. ...more on Wikipedia about "Clinoclasite"
A concretion is a solid mineral inclusion within a rock stratum that is oval or spherical in shape. They form within layers of sedimentary strata that have already been deposited. The cementation occurs due to processes independent from the primary cementation in which the layers of sedimentary rock were adhesed together. This secondary cementation often makes the concretion harder and more resistant to weathering than the host strata. ...more on Wikipedia about "Concretion"
Crocoite is a mineral consisting of lead chromate, PbCrO4, and crystallizing in the monoclinic system. It is sometimes used as a paint, being identical in composition with the artificial product chrome yellow; it is the only chromate of any importance found in nature. It was discovered at Berezovsk near Ekaterinburg in the Urals in 1766; and named crocoise by F. S. Beudant in 1832, from the Greek if peoc, saffron, in allusion to its color, a name first altered to crocoisite and afterwards to crocoite. It is found as well-developed crystals of a bright hyacinth-red color, which are translucent and have an adamantine to vitreous lustre. On exposure to light much of the translucency and brilliancy is lost. The streak is orange-yellow; Mohs hardness is 2.5-3; and the specific gravity is 6.0. In the Urals the crystals are found in quartz-veins traversing granite or gneiss. Other localities which have yielded good crystallized specimens are Congonhas do Campo near Ouro Preto in Brazil, Luzon in the Philippines, and Umtali in Mashonaland. Gold is often found associated with this mineral. Crystals far surpassing in beauty any previously known have been found in the Adelaide Mine at Dundas, Tasmania; they are long slender prisms, 3 or 4 in. in length, with a brilliant lustre and color. ...more on Wikipedia about "Crocoite"
Descloizite is a rare mineral species consisting of basic lead and zinc vanadate, (Pb, Zn)2(OH)VO4, crystallizing in the orthorhombic system and isomorphous with olivenite. ...more on Wikipedia about "Descloizite"
Euhedral refers to well-formed crystals with sharp, easily-recognized faces. Normally, crystals do not form smooth faces or sharp crystal outlines. Many crystals grow from cooling liquid magma. As magma cools, the crystals grow, and they eventually touch each other, preventing crystal faces form forming properly or at all. ...more on Wikipedia about "Euhedral"
Fengite is a transparent form of Marble or Alabaster. In former times it was sometimes used for windows instead of glass. ...more on Wikipedia about "Fengite" Inform your friends about shortopedia
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