Stibnite

Encyclopedia. Stibnite, sometimes called antimonite, is a sulfide mineral with the formula Sb 2 S 3. It forms grey orthorhombic crystals of hardness 2. It is the most important source …

Antimony sulphide | Article about Antimony sulphide by …

stibnite. stibnite (stĭbˈnīt), antimony sulfide, Sb 2 S 3, a mineral, silvery gray in color, with a metallic luster. It crystallizes in the orthorhombic system. Found in many parts of the world, it is the most important ore of antimony. It is commonly deposited by alkaline waters and occurs in association with quartz, calcite, sulfides of ...

Antimony transformation and mobilization from stibnite …

2.3. Antimony mobilization from stibnite by strain AS-1. Since strain AS-1 had a panel of sulfur-oxidation genes in its genome, and phylogenetic analysis showed strain AS-1 had a close relationship with several sulfur-oxidizers in genus Bosea (Lu et al., 2018), the abilities of strain AS-1 to oxidize sulfide and mobilize Sb in stibnite were …

Antimony (III) sulfide | Article about Antimony (III) sulfide …

stibnite (stĭbˈnīt), antimony sulfide, Sb 2 S 3, a mineral, silvery gray in color, with a metallic luster.It crystallizes in the orthorhombic system. Found in many parts of the world, it is the most important ore of antimony. It is commonly deposited by alkaline waters and occurs in association with quartz, calcite, sulfides of the base metals, arsenic, gold, and silver.

antimony summary | Britannica

antimony, Semimetallic to metallic chemical element (see metal), chemical symbol Sb, atomic number 51. Of its various allotropes, the most common is a lustrous, bluish, brittle, flaky solid. In nature antimony occurs chiefly as the gray sulfide mineral stibnite, Sb 2 S 3.

antimony | Infoplease

It is a poor conductor of heat and electricity and is brittle and easily powdered. It is primarily used in alloys and chemical compounds. It is a member of Group 15 of the periodic table. Antimony rarely occurs free in nature, but its ores are widely distributed. The principal ore is stibnite, a sulfur compound known since early times; there ...

Stibnite

Antimony. S.C. Gad, in Encyclopedia of Toxicology (Third Edition), 2014 Abstract. Antimony (Sb; CASRN ) is a semimetal element with chemical properties similar to lead, arsenic, and bismuth. In nature, it is found associated with sulfur as stibnite.Antimony is used in white metal, a group of alloys having relatively low melting …

Antimony

Antimony is sometimes found as an element, but normally it is found as stibnite, an antimony sulfide mineral. Stibnite is the main ore of antimony. China is the biggest maker of antimony; it makes 84% of all antimony. Other countries that make antimony are South Africa, Bolivia, and Kyrgyzstan. Antimony is not used in the human body.

Stibnite: The mineral stibnite information and pictures

The Mineral stibnite. Stibnite is named after the latin stibium, which is the old name of the element antimony (Sb). Stibnite was and continues to be the primary ore of antimony. Stibnite forms some of the most outstanding natural crystals that exist, in way of sharpness, luster, and size. It can form in groups of huge metallic luster ed ...

UArizona Gem and Mineral Museum unveils rare specimen …

Stibnite – which is opaque and metallic gray with long spearlike prismatic crystals – is a compound of antimony and sulfur originating roughly 130 million years ago. Image Stibnite, a compound of antimony and sulfur that originated roughly 130 million years ago, has a storied history that spans centuries and societies.

Stibnite | Properties, Occurrence, Formation and …

Stibnite is a sulfide minerals with chemical composition is antimony sulfide (Sb2S3). The principal ore of antimony. Lead-gray to silvery gray in color, it often develops a black, iridescent tarnish on …

Studying Stibnite | Rock & Gem Magazine

Stibnite, or antimony trisulfide (Sb 2 S 3 ), is the most abundant of the roughly 100 antimony-bearing minerals. Antimony's chemical symbol (Sb) stems from stibium, the Latin word for stibnite. The origin of the word "antimony", however, is uncertain. One possibility is the 15th-century Middle English word antimonie, which …

Stibnite

Stibnite or antimonite is sulfide metalloid mineral of antimony with chemical formula (Sb2 S 3 ). The color is shiny lead-gray tarnishing to black with massive, granular, radiating, and elongated crystals habits ( Fig. 1.50 ). The mineral contains 71.7% antimony in its natural purest form. Stibnite crystallizes in orthorhombic system, needle ...

Antimony Mining

Many minerals contain antimony; however, stibnite and antimonial lead ores are the main sources of the metal. Stibnite (Sb2S3) and its alteration oxide, stibiconite (Sb 3+ Sb 2 5+ O 6 (OH)), were the only minerals mined in Arkansas for this metal. Stibnite is steel-gray, has a relatively high specific gravity (4.6), and has a metallic luster.

Stibnite

Abstract. Antimony (Sb; CASRN ) is a semimetal element with chemical properties similar to lead, arsenic, and bismuth. In nature, it is found associated with …

Stibnite

STIBNITE, a mineral consisting of antimony sulphide, Sb2S3, occurring as bladed or acicular orthorhombic crystals; an important ore of antimony. It was mentioned by Dioscorides and Pliny under the names stimmi, stibi and platyophthalmon (arXarvbc¢BaXuov); the last name refers to the use which the ancients made of the …

Stibnites | Article about stibnites by The Free Dictionary

stibnite (stĭbˈnīt), antimony sulfide, Sb 2 S 3, a mineral, silvery gray in color, with a metallic luster.It crystallizes in the orthorhombic system. Found in many parts of the world, it is the most important ore of antimony. It is commonly deposited by alkaline waters and occurs in association with quartz, calcite, sulfides of the base metals, arsenic, gold, and silver.

Stibnite Gold Project

The Stibnite Gold Project has the largest known antimony resource in the U.S. The Project is one of the top 10 gold deposits in the U.S. We will recover more than 4 million ounces of gold over the 12 years projected for the life-of-mine. Over $1.3 billion of initial investment will be required to build the Stibnite Gold Project, with another ...

Antimony

Antimony is a solid metalloid chemical element that belongs to the pnictogen group. [1] The name "Antimony" comes from two Greek words. The first "anti" means not and the second "monos" means alone. The name suits the element because it is extremely hard to find alone in nature. [2] The chemical symbol for Antimony ( Sb ), comes from its ...

Stibnite

Stibnite - Encyclopedia. Stibnite is the most common of the minerals of antimony, of which it constitutes the ore. Its name comes from the Greek stibi and then from the Latin stibium, the ancient name of antimony. It is …

Study on the leaching behavior of antimony in stibnite …

In order to investigate the release process of antimony from stibnite under the leaching effect of rain and snow in Hunan Xikuangshan(XKS) mining area, some important environmental factors are selected: dissolved oxygen, Fe(III) and Pseudomonas sp. AO-1 (referred to as AO-1). The one-factor batch sequence experimental method is …

Antimony

Antimony - Chemistry Encyclopedia; Antimony. MELTING POINT: 630°C ... DENSITY : 6.684 g/cm 3 MOST COMMON IONS : Sb 3+, SbO + Antimony is a metalloid element, or a semimetal, its chemical behavior being between those of metals and nonmetals. It is a substance that was known in the ancient world. ... including stibnite, Sb 2 S 3, the …

Stibnite

STIBNITE,a mineral consisting of antimony sulphide, Sb2S3, occurring as bladed or acicular orthorhombic crystals; an important ore of antimony.

antimony | FactMonster

Small concentrations of antimony can be detected by a method similar to the Marsh test for arsenic. Antimony is mixed with soot and other substances to make kohl, used for centuries by women in some countries as an eye cosmetic. A method for the extraction of antimony from stibnite was first described c.1600 by Basilius Valentinus.

All manner of antimony | Nature Chemistry

Its symbol Sb comes from the Latin stibnum, which also lends its name to the mineral in which antimony is most commonly found: stibnite (Sb 2 S 3 ), used by …

Antimony | SpringerLink

Compared to other elements, little is known regarding the geochemical behavior of antimony. In natural waters, the common oxidation states of antimony are (+3 and +5) in which the hydrolytic anion [Sb(OH) 6] − is thought to be the dominant species under oxic conditions and pH range of 2–12. Even though the abundance of antimony …

Availability, Toxicology and Medical Significance of Antimony

The principal antimony ore exists in the form of stibnite (Sb 2 O 3), a sulfide mineral macroscopically appearing as columnar or needle-shaped crystals. The color of the crystals is most commonly a silvery to dark grey, although tarnished crystal faces may have an indigo blue coloration. ... Li T. Kirk-Othmer Encyclopedia of Chemical Technology ...

Stibnite

Formation and structure. Stibnite is formed from antimony(III) compounds with hydrogen sulfide.This reaction gives a black precipitate: 2 Sb 3+ + 3 H 2 S → Sb 2 S 3 + 6 H +. This reaction is reversed by hydrochloric acid.. Stibnite is attacked by potassium hydroxide solution and dissolves in solutions of polysulfide ions to give polysulfido complexes. ...

Stibnite

Stibnite or antimonite is sulfide metalloid mineral of antimony with chemical formula (Sb 2 S 3). The color is shiny lead-gray tarnishing to black with massive, granular, radiating, …

Stibnite | Properties, Occurrence, Formation and Uses Areas

Chemical Formula: Sb2S3. Chemical Composition: Stibnite is composed of two elements, antimony (Sb) and sulfur (S). It consists of approximately 71.4% antimony and 28.6% sulfur by weight. Physical Properties: Crystal System: Stibnite crystallizes in the orthorhombic crystal system, typically forming long, slender prismatic or needle-like ...

Stibnite Mineral Information photos and Facts, Antimony Ore

Stibnite Mineral Facts: Chemical Formula: Sb2 S 3 - 71.4 % Antimony by weight. Colors: Mineral and streak are lead-gray. In very thin splinters it is translucent in red or yellow tints. Hardness: 2.0. Density: 4.55. Cleavage: One cleavage that is very perfect parallel (010), leaving striated surfaces. Crystallography: Orthorhombic.

Stibnite – Wikipedia tiếng Việt

Stibnite, đôi khi gọi là antimonite, là một khoáng chất sulphit với công thức Sb 2 S 3.Vật liệu màu xám nhạt kết tinh trong một nhóm không gian ảo. Đây là nguồn quan trọng nhất cho antimony kim loại. Tên gọi từ tiếng Hy Lạp στίβι stibi thông qua tiếng Latin stibium là tên cũ của khoáng chất và antymon nguyên tố.

Antimony | The Canadian Encyclopedia

The mineral stibnite is the most important source of antimony. Antimony (Sb) is a silvery-white, lustrous, crystalline solid. Uncharacteristically for metals, it is brittle and conducts heat and …

antimony

Antimony (Sb) is a brittle, toxic, semimetallic element (see metalloid), which expands on solidifying; it lies in group VA of the periodic table (Figure 1). It occurs as the element, oxide, and, most commonly, sulfide (stibnite, Sb 2 S 3); from stibnite it is extracted roasting the ore to give antimony (II) oxide and then reducing this with carbon.