|
Kabook is a clay ironstone found in Sri Lanka.
 Research Kabook
Kainite is a compound salt consisting chiefly of potassium chloride and magnesium sulphate, occurring at the Stassfurt salt mines in Prussian Saxony. Kainite dissolves easily in water and has a relative hardness of 3. Kainite is valuable for the production of double sulphate of potash and magnesia, and is used as a manure.
Research Kainite
Kalicine is native potassium bicarbonate occurring as a white crystalline mineral.
Research Kalicine
Kalsilite is a rare hexagonal silicate of potassium and aluminium found in some lavas.
Research Kalsilite
Kamacite is an alloy of iron and nickel occurring in meteorites as bar-shaped masses.
Research Kamacite
Kampylite or campylite is a variety of mimetite or arsenate of lead in hexagonal prisms of a fine orange yellow.
Research Kampylite
Kaolin is a very pure white clay, ordinarily in the form of an impalpable powder, and used to form the paste of porcelain, China clay and porcelain clay. It is chiefly derived from the decomposition of common feldspar. Similar clays, differing slightly in colour and in the percentage of constituents, are found at Schneebergin Saxony, furnishingthe material of Dresden china; at Limoges, in France, employed for Limoges ware; and at St Austell, in Cornwall, the source of supply for the British potteries. It is also found in Nebraska and some of the eastern states of America. In its natural state kaolin somewhat resembles mortar; by sorting and repeated filtration it is freed from all coarse ingredients, then dried in pans and sheds, and sent into the market cut into blocks.
Research Kaolin
Kaolinite is a hydrous silicate of aluminium with the formulae Al2Si2O5(OH)4 and a relative hardness of 3. It has a crumbly habit and forms the basis of most clay. Kaolinite is derived from the decomposition of feldspars, particularly aluminium silicates and is one of the most important of the natural industrial substances, used for bricks, ceramics, and many other applications.
Research Kaolinite
Kapia is the fossil resin of the kauri tree of New Zealand.
Research Kapia
Karpholite is a fibrous mineral occurring in tufts of a straw-yellow colour. It is a hydrous silicate of alumina and manganese.
Research Karpholite
Keilhauite is a mineral of a brownish black colour, related to titanite in form. It consists chiefly of silica, titanium dioxide, lime, and yttria.
Research Keilhauite
Kermes mineral is an amorphous antimony trisulphide, a brown-red powder used in the preparation of artists' colours.
Research Kermes Mineral
Kernite is a major ore of boron. It is formed in playa lakes with the boron supplied by thermal springs passing through the underlying volcanic rock. It has the formulae Na2B4O7ù4H2O and a relative hardness of 3.
Research Kernite
Kidney ore is a variety of hematite or iron sesquioxide, occurring in compact kidney-shaped masses.
Research Kidney Ore
Kiefekil is a species of clay.
Research Kiefekil
Kieserite, named after Professor Kieser, of Jena, is a hydrous sulphate of magnesia found at the salt mines of Stassfurt, Prussian Saxony. Kieserite is employed as a source of epsom salt, and in the manufacture of manures. Mixed with quicklime and water it hardens into a mass which, after heating, pulverizing, and again mixing with water, becomes of a marble-like consistency, and may be made into ornamental articles, etc
Research Kieserite
Kimberlite is an igneous rock containing very little silica.
Research Kimberlite
Kimmeridge clay is a bluish slaty clay, containing some carbonate and sulphate of lime, found in thick deposits in the south of England at and around Kimmeridge in Dorset, and in the north of France. It is a member of the Upper Oolite.
Research Kimmeridge Clay
Knebelite, named after Major von Knebel, is a mineral of a grey, red, brown, or green colour, and glistening lustre. It is a silicate of iron and manganese.
Research Knebelite
Kobellite, named after Franz von Kobell, of Munich, is a blackish grey mineral, a sulphide of antimony, bismuth, and lead.
Research Kobellite
Kottigite is a dark red or brown coloured mineral formed as a weathering product of zinc minerals such as sphalerite. It is a minor ore of zinc and is named after Otto Kottig, a chemist who discovered it in Germany, kottigite being confirmed as a distinct species of mineral in 1850.
Research Kottigite
Kunzite is a transparent form of spodumene. It was discovered in 1902 by George Kunz, the German mineralogist, near the Pala Chief Mountain in California.
Research Kunzite
Kupletskite is a mineral confirmed as a distinct species in 1956 following work carried out by Boris Kupletski and his wife in Russia into the properties of astrophyllite. Astrophyllite undergoes a reaction in which the titanium is replaced by niobium, the resulting mineral being kupletskite which unlike astrophyllite has a triclinic system of symmetry.
Research Kupletskite
Kutnohorite is a rare greenish grey or pinkish coloured carbonate mineral confirmed as a distinct species of mineral in 1901 and named after the place where it was discovered - Kutna Hora in the Czech Republic. Kutnohorite is a carbonate of calcium. Iron and manganese related to ankerite and dolomite. Kutnohorite has a relative hardness of 3.5 to 4.
Research Kutnohorite
|
Abbreviations
Rocks & Minerals
