Report of the subcommittee on amphiboles of the international mineralogical association commission on new minerals and mineral names. Back to rocks and minerals articles kathy feick the name amphibole is derived from the greek work amphiboles, meaning ambiguous. Amphibole amphibolesmg,fe,ca,na2mg,fe,al5si,al8o22. The properties of amphiboles, micas, pyroxenes, and olivines and an introduction to mineral properties in thin section.
Most root names apply to the mgaldominant species, e. Alternatively, you can download the file locally and open with any standalone pdf reader. Amphibole is an important group of generally darkcolored inosilicate minerals. Indian mineralogist download ebook pdf, epub, tuebl, mobi. Adobe acrobat reader dc software is the free global standard for reliably viewing, printing, and commenting on pdf documents. There are both orthorhombic and monoclinic amphiboles. A petrochemical study of calcic amphiboles from the east bull lake anorthositegabbro layered complex, district of algoma, ontario. A thermochemical analysis of some amphiboles by mark caesar wittels download pdf 8 mb. Mineralogy and morphology of amphiboles observed in. A petrochemical study of calcic amphiboles from the east. Exsolution microstructures in amphiboles from metabasalts. Members of the amphibole group of minerals occur in a wide range of p t environments and are common constituents of both igneous and metamorphic rocks. Robinson, in clinical respiratory medicine fourth edition, 2012. And now, its connected to the adobe document cloud.
Amphibole, any of a group of common rockforming silicate minerals. Environmental protection agency region 9 iag dw14921905012 open file. Amphiboles crystallize in monoclinic and rhombic systems, forming prismatic crystals. Amphibole definition, any of a complex group of hydrous silicate minerals, containing chiefly calcium, magnesium, sodium, iron, and aluminum, and including hornblende, tremolite, asbestos, etc. Inosilicates are chain silicates which have interlocking chains of silicate tetrahedra with either sio3, 1. Amphibole simple english wikipedia, the free encyclopedia.
S, 2010, reported historic asbestos mines, historic asbestos prospects, and other natural occurrences of asbestos in oregon and washington. Excel spreadsheet to classify chemical analyses of amphiboles andrewlocockamphibole. The properties of amphiboles, micas, pyroxenes, and olivines. The basis of the crystalline structure of amphiboles, as in the case of all silicates, is oxysilicate tetrahedrons interconnected by two or three common oxygen ions into a continuous band see figure 1. The amphiboles show considerable similarity to the pyroxenes in both structure and composition.
Chrysotile is the most common serpentine asbestos used commercially and has long, curly and pliable fibers. Amphibole is the name of an important group of generally darkcolored, inosilicate minerals, forming prism or needlelike crystals, composed of double chain tetrahedra, linked at the vertices and generally containing ions of iron andor magnesium in their structures. However, some amphiboles exhibit a particularly good vitreous luster and may be mistaken as metallic. If your web browser has the proper plugin installed, clicking on the pdf will bring the file into your web browser from which you can then print the notes. Amphibole definition of amphibole by merriamwebster. Contributions to mineralogy and petrology, feb 1987 d. It captures the tectonic diversity of the indian terrain, including tectonics of indias.
The oh group is an essential part of the structure. Amphibole group an introduction to the rockforming. If you do not see its contents the file may be temporarily unavailable at the journal website or you do not have a pdf plugin installed and enabled in your browser. The amphibole group remains under study with the most recent, imaapproved nomenclature being published in 2012 hawthorne et al. Amphiboles earth sciences museum university of waterloo. Members of the amphibole family include glaucophane, hornblende, riebeckite, tremolite, anthophyllite and cummingtonite. It is presently divided into several subgroups and remains under study. This open file report describes the process of preparation and summarizes the chemistry and mineralogy of the la2007 toxicological testing material.
These usually serve to distinguish them from most other common rockforming minerals with the exception of the pyroxene mineral group. They occur in many metamorphic rocks, especially those derived from mafic igneous rocks those containing darkcoloured ferromagnesian minerals and siliceous dolomites. Winamphcal stores all the calculated results in an excel file. Crystal chemistry 17 and link to form only one distinct type of doublechain of tetrahedra. Download winzip free, open zip files with winzip, 1. If the plugins are not installed, your web browser will either attempt to download the pdf files or offer to send you to the adobe web site to download the plugins for your browser. The basic structure of an amphibole is a doublechain of tetrahedral. The international mineralogical association currently classifies amphiboles as a mineral supergroup, within. Amphiboles article about amphiboles by the free dictionary. A windows program for the ima04 amphibole classification. Hastingsitic amphiboles can contain high cl contents in both terrestrial and meteorite samples. Amphiboles crystallize in monoclinic and orthorhombic system fig. To determine if the composition or morphology of amphiboles occurring in the rainy creek vermiculite deposit near libby, montana, has changed as the deposit has been mined over the last 70 years, we assembled amphiboles collected in the. Nelson inosilicates pyroxenes and amphiboles inosilicates single chain silicates the single chain silicates have a basic structural unit consisting of linked sio4 tetrahedra that each share 2 of their oxygens in such a way as to build long chains of sio4.
Leake1 chairman department of geology and applied geology, university of glasgow, glasgow g12 8qq, u. Malignant mesothelioma and its nonasbestos causes our study provides a reference for the comparison of amphibole lattice parameters, but its fingerprint has every mineral, besides lattice parameters also the. Amphiboles are found principally in metamorphic and igneous rocks. Amphibole article about amphibole by the free dictionary. This is an updated version of the plot first proposed by hawthorne et al. You can find small crystals of hornblende in many types of igneous rocks. Among igneous rocks they are found in all the major groups ranging from ultrabasic to acid and alkaline types, but are particularly common constituents of the intermediate members of the calcalkali series. Hawthorne et al nomenclature of the amphibole supergroup 2033 it would be good to have consistent use of prefixes in amphibole names. Environmental protection agency region 9 iag dw14921905012 open file report 200662 u. The specific gravity values of amphiboles range from about 2. Amphibole, any of a group of common rockforming silicate minerals general considerations. Ansrnacr ixrnooucrrow gibson peak pluton, a 3square mile composite intrusion in the trinitv aips of northern california, is particularly suitable for investigation. Download the latest version of adobe reader, free of charge. An extensive and complex group of minerals presently divided into a groupsubgrouprootname hierarchy see groupsubgrouprootname files for the individual species.
The x represents large ions such as sodium or potassium and this site can be left vacant. This amphibole subgroup was named alkali amphiboles in leakes nomenclature of amphiboles 1978 and renamed as sodic amphiboles in the 1997 amphibole nomenclature. Usually they contain ions of iron andor magnesium in their structures. August 28, 2017 for this course you will need to know the chemical formula of the common minerals as listed here. Mineralogy and morphology of amphiboles observed in soils. If you have ohthen any number of monovalent1 ions can substitute. Introduction amphiboles are double chain silicates sharing many physical and chemical properties with pyroxenes.
There are three distinct m sites that are occupied by the c cations, m 1, m 2 and m 3, with. Download the latest version of acrobat reader, free of charge or go to access. The properties of amphiboles, micas, pyroxenes, and. A petrochemical study of calcic amphiboles from the east bull.
Nelson inosilicates pyroxenes and amphiboles inosilicates single chain silicates the single chain silicates have a basic. The complex structure allows a large number of different ion substitutions, therefore, you can get amphiboles. This assignment can be downloaded in pdf format acrobat pdf 92kb jul 05. Asbestos is a term used to describe a group of mineral fibers of two major types. Amphiboles can be green, black, colorless, white, yellow, blue, or brown. They are double chain sio 4 tetrahedra, linked at the vertices. Chlorine incorporation in amphiboles synthesized along the. I recommend you print the pdf version of this file and. Amphibole definition of amphibole by the free dictionary. Amphibole there are several different minerals within the amphibole group, but the most common type is hornblende. This series of monographs represents continuation on an international basis of the previous series mineralogie uno petrographie in einzeloarstellungen, published by springer.
Oct 15, 2019 amphibole plural amphiboles mineralogy any of a large group of structurally similar hydrated double silicate minerals, containing various combinations of sodium, calcium, magnesium, iron, and aluminium aluminum. Find materials for this course in the pages linked along the left. Reported historic asbestos mines, historic asbestos prospects. Mineralogical notes from the university of otago, n. Amphibole mineral data, information about amphibole, its properties and worldwide locations. It is composed of doublechain sio 4 tetrahedra, linked at the vertices and generally containing ions of iron andor magnesium in their structures. Amphibole minerals defining characteristics are their dark color, hardness and welldeveloped cleavage. The presence of talc and associated amphiboles was more common in women than it was in men odds ratio, 3.