STIBNITE OR ANTIMONITE[Sb2S3]

Stibnite, sometimes called antimonite, is a sulfide mineral with the formula Sb₂S₃. This soft grey material crystallizes in an orthorhombic space group. It is the most important source for the metalloid antimony.

Detailed description

The name is from the Greek στίβι stibi through the Latin stibium as the old name for the mineral and the element antimony.

Uses

Pastes of Sb₂S₃ powder in fat^[6] or in other materials have been used since ca. 3000 BC as eye cosmetics in the Middle East and farther afield; in this use, Sb₂S₃ is called kohl. It was used to darken the brows and lashes, or to draw a line around the perimeter of the eye.

Antimony trisulfide finds use in pyrotechnic compositions, namely in the glitter and fountain mixtures. Needle-like crystals, "Chinese Needle", are used in glitter compositions and white pyrotechnic stars. The "Dark Pyro" version is used in flash powders to increase their sensitivity and sharpen their report. It is also a component of modern safety matches. It was formerly used in flash compositions, but its use was abandoned due to toxicity and sensitivity to static electricity.^[7]

Stibnite was used ever since protodynastic Ancient Egypt as a medication and a cosmetic. The Sunan Abi Dawood reports, “prophet Muhammad said: 'Among the best types of collyrium is antimony (ithmid) for it clears the vision and makes the hair sprout.'”^[8]

The 17th century alchemist Eirenaeus Philalethes, also known as George Starkey, describes stibnite in his alchemical commentary An Exposition upon Sir George Ripley's Epistle. Starkey used stibnite as a precursor to philosophical mercury, which was itself a hypothetical precursor to the Philosopher's stone

PRICE

$2.23/KG OR $1.01/IB

For more information:

mobile: +2348039721941

contact person: emeaba uche

e-mail: emeabau@yahoo.com

website: www.franchiseminerals.com

Comments

SPODUMENE [LiAl(SiO3)2]

Spodumene is a pyroxene mineral consisting of lithium aluminium inosilicate , Li Al ( Si O 3 ) 2 , and is a source of lithium. It occurs as colorless to yellowish, purplish, or lilac kunzite (see below), yellowish-green or emerald-green hiddenite , prismatic crystals, often of great size. Detailed d Single crystals of 14.3 m (47 ft) in size are reported from the Black Hills of South Dakota , United States . [5] [6] The normal low-temperature form α-spodumene is in the monoclinic system whereas the high-temperature β-spodumene crystallizes in the tetragonal system. The normal α-spodumene converts to β-spodumene at temperatures above 900 °C. [4] Crystals are typically heavily striated parallel to the principal axis. Crystal faces are often etched and pitted with triangular markings. Discovery and occurrence Spodumene was first des...

COLUMBITE[(Fe, Mn)Nb2O6]

Columbite , also called niobite , niobite-tantalite and columbate [( Fe , Mn ) Nb 2 O 6 ], is a black mineral group that is an ore of niobium . It has a submetallic luster and a high density and is a niobate of iron and manganese . Detailed description This mineral group was first found in Haddam, Connecticut , in the United States. It forms a series with the tantalum -dominant analogue ferrotantalite and one with the manganese-dominant analogue manganocolumbite . The iron-rich member of the columbite group is ferrocolumbite . Some tin and tungsten may be present in the mineral. Yttrocolumbite is the yttrium-rich columbite with the formula (Y,U,Fe)(Nb,Ta)O 4 . It is a radioactive mineral found in Mozambique . Columbite has the same composition and crystal symmetry ( orthorhombic ) as tantalite . In fact, the two are often grouped t...

ARSENOPYRITE MINERAL

Listing description What is Arsenopyrite? Arsenopyrite is an iron arsenic sulfide. It is the most common arsenic mineral and the primary ore of arsenic metal. Detailed description Arsenopyrite is most often found as a hydrothermal vein mineral and sometimes as a mineral of contact metamorphism. It is sometimes referred to in old texts as "mispickel". Physical Properties of Arsenopyrite Chemical Classification sulfide Color silver white to steel gray Streak dark grayish black Luster metallic Diaphaneity opaque Cleavage poor Mohs Hardness 5.5 to 6 Specific Gravity 5.9 to 6.2 Diagnostic Properties smells like garlic when crushed, crystal form Chemical Composition iron arsenic sulfide, FeAsS Crystal System monoclinic Uses poison...

MINOR METALS

Search This Blog