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Science
; 236(4804): 898, 1987 May 22.
Article
in English
| MEDLINE
| ID: mdl-3554511
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Bull Environ Contam Toxicol
; 29(1): 1-6, 1982 Jul.
Article
in English
| MEDLINE
| ID: mdl-7115986
3.
4.
Science
; 155(3759): 193-5, 1967 Jan 13.
Article
in English
| MEDLINE
| ID: mdl-17738224
ABSTRACT
Biotite alteration under acid conditions proceeds differently from the generally accepted pathway of transformation to vermiculite in which hydrated cations cause interlayer expansion, resulting in a dark-colored peripheral band on mica particles. Acid solutions of synthetic or biologic origin remove octahedral ions, leaving a fragile matrix of amorphous material.