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Record 1 of 102
Vector representation of tourmaline compositions
Author and Affiliation:
Burt, Donald M.(Arizona State University, Tempe, United States)
Abstract: The vector method for representing mineral compositions of amphibole and mica groups is applied to the tourmaline group. Consideration is given to the methods for drawing the relevant vector diagrams, relating the exchange vectors to one another, and contouring the diagrams for constant values of Na, Ca, Li, Fe, Mg, Al, Si, and OH. The method is used to depict a wide range of possible tourmaline end-member compositions and solid solutions, starting from a single point. In addition to vector depictions of multicomponent natural tourmalines, vectors are presented for simpler systems such as (Na,Al)-tourmalines, alkali-free tourmalines, and elbaites.
Publication Date: Jan 01, 1989
Document ID:
19900040296
(Acquired Nov 28, 1995)
Accession Number: 90A27351
Subject Category: GEOPHYSICS
Document Type: Journal Article
Publication Information: American Mineralogist (ISSN 0003-004X); 74; 826-839
Publisher Information: United States
Contract/Grant/Task Num: NASW-4066
Financial Sponsor: NASA; United States
Organization Source: Arizona State Univ.; Tempe, AZ, United States
Description: 14p; In English
Distribution Limits: Unclassified; Publicly available; Unlimited
Rights: Copyright
NASA Terms: CHEMICAL COMPOSITION; CRYSTAL STRUCTURE; TOURMALINE; VECTOR PROCESSING (COMPUTERS); ALUMINUM COMPOUNDS; MAGNESIUM COMPOUNDS; SODIUM COMPOUNDS
Imprint And Other Notes: American Mineralogist (ISSN 0003-004X), vol. 74, 1989, p. 826-839.
Availability Source: Other Sources
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