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CRYSTALLINE SILICA IN PLANTS
Author(s) -
Sterling Clarence
Publication year - 1967
Publication title -
american journal of botany
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.218
H-Index - 151
eISSN - 1537-2197
pISSN - 0002-9122
DOI - 10.1002/j.1537-2197.1967.tb10707.x
Subject(s) - tridymite , cristobalite , biology , fragaria , amorphous silica , botany , quartz , rosaceae , silica gel , biogenic silica , amorphous solid , mineralogy , materials science , crystallography , chemical engineering , diatom , chemistry , composite material , paleontology , engineering
Crystalline silica has been found in Fragaria leaves, Equisetum shoots, diatomite, and tabaschir. Differing proportions of amorphous silica (opal) also occur in each of these. The crystalline X‐ray reflections of α‐quartz, low tridymite, or α‐cristobalite have been found in virtually all specimens. However, unidentified crystalline reflections are noted, particulary in the silica isolated from Fragaria leaves and diatomite.