Organize Your Family History - Stay focused and happy while exploring your roots The Mineralogical Society of Great Britain and Ireland - Home The 'Images of Clay' Archive is an ongoing project of the Society's Clay Minerals Group and The Clay Minerals Society (USA). The idea behind this project is to build a collection of high quality images that are freely available to all to download for non-profit purposes, such as the teaching of clay mineralogy (see the copyright statement below). Suitable images include electron micrographs of clay minerals, or indeed any image associated with the study of clay mineralogy. Kaolinite Kaolinite, platy Kaolinite, Pugu Kaolinite, stacked Kaolinite, vermiform Mordenite and clinoptilolite/heulandite Mordenite, clinoptilolite-heulandite and smectite Nacrite Nontronite Opal Palygorskite These images are free to all to download for non-profit purposes. To download a copy of an image, click on the photograph of interest to enlarge it, then right click (pc) and select "save picture as" to make a local copy."
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Industrial mineral Industrial minerals are geological materials which are mined for their commercial value, which are not fuel (fuel minerals or mineral fuels) and are not sources of metals (metallic minerals). They are used in their natural state or after beneficiation either as raw materials or as additives in a wide range of applications. Examples and applications[edit] Typical examples of industrial rocks and minerals are limestone, clays, sand, gravel, diatomite, kaolin, bentonite, silica, barite, gypsum, and talc. In some cases, even organic materials (peat) and industrial products or by-products (cement, slag, silica fume) are categorized under industrial minerals, as well as metallic compounds mainly utilized in nonmetallic form (as an example most of the titanium is utilized as an oxide TiO2 rather than Ti metal). In some cases, organic substances (such as peat) are categorized as industrial minerals. List of industrial minerals[edit] See also[edit] External links[edit]
Mineralogy Database Sperm: 15 Crazy Things You Should Know - Sperm: 15 crazy things you should know - Pictures When it comes to sperm, people always seem to have an agenda. Some want to kill sperm cells. Some want to buy or sell them. Some fret over their failure to get the job done. Why can't we just appreciate sperm for the amazing little wrigglers that they are? After all, without sperm, the world would be a very lonely place.So here are 15 fascinating facts about sperm, from Dr. The Mineralogical Society of Great Britain and Ireland - Kaolinite M. Roe, Macaulay Institute Well crystallized kaolinite from the Keokuk geode, USA From: Keokuk geode, USADimensions: Field of view approx. 18 microns wide These images are free to all to download for non-profit purposes. All published uses of images from this gallery should acknowledge the source using the following term "Image reproduced from the 'Images of Clay Archive' of the Mineralogical Society of Great Britain & Ireland and The Clay Minerals Society (www.minersoc.org/gallery.php? View other images in the 'General' galleryView other images in the ''Images of Clay'' galleryView other images in the 'Images by David Green ' gallery
Articles Hara-Kiri dans revues diverses ADAM n° 29 – février 1969: HARA KIRI à ventre ouvert par Philippe KOECHLIN LUI numéro 191 – décembre 1979: "Hara Kiri, mon humour…" par Jacques Sternberg CAFE numéro 1 – 1er trimestre 1985 : "Hara Kiri bande encore" LUI numéro 256 – 1er trimestre 1985: "25 ans de travail, famille, patrie: merci Hara Kiri !" par Claudine BEJA et Catherine CARLSON L'ECHO DES SAVANES n° 265 novembre 2006: " L'Art Bête et Méchant " par Laurent MELIKIAN HARA-KIRI (L'AVENTURE) extrait du livre: "Le Rire de Résistance" (Jean-Michel RIBES – Théâtre du Rond-Point – Beaux Arts éditions - 2007) par Philippe KREBS – directeur des éditions Hermaphrodite) TELE CINE VIDEO n° 35 – décembre 1983: naissance d'Hara Kiri Vidéo
Ilmenite Crystal structure of ilmenite Ilmenite is a weakly magnetic titanium-iron oxide mineral which is iron-black or steel-gray. It is a crystalline iron titanium oxide (FeTiO 3). It crystallizes in the trigonal system. The ilmenite crystal structure is an ordered derivative of the corundum structure; in corundum all cations are identical but in ilmenite Fe2+ and Ti4+ ions occupy alternating layers perpendicular to the trigonal c axis. Distinguishing features[edit] Ilmenite is commonly recognized in altered igneous rocks by the presence of a white alteration product, the pseudo-mineral leucoxene. In reflected light it may be distinguished from magnetite by more pronounced reflection pleochroism and a brown-pink tinge. Ilmenite is weakly magnetic, with a weak response to a hand magnet. Mineral chemistry[edit] Ilmenite from Froland, Aust-Agder, Norway; 4.1 x 4.1 x 3.8 cm At higher temperatures it has been demonstrated there is a complete solid solution between ilmenite and hematite. Paragenesis[edit]