-
Devitrification is the
process of
crystallization in a
formerly crystal-free (amorphous) gl****. The term is
derived from the
Latin vitreus,
meaning gl****y...
- p. 12. ISBN 9780816550036. Marshall,
Royal R. (October 1, 1961). "
Devitrification of
Natural Gl****". GSA Bulletin. 72 (10): 1493–1520. Bibcode:1961GSAB...
-
circulation through the
porosity of
volcanic ash beds,
which converts (
devitrification) the
volcanic gl**** (obsidian, rhyolite, dacite)
present in the ash...
-
effect phase transformations, as in
conversion of
anatase to
rutile or
devitrification of gl**** materials;
removal of
ammonium ions in the
synthesis of zeolites;...
-
Cristobalite Cristobalite spherulites formed by
devitrification from the
obsidian matrix.
Specimen from California, US; size: 5.9 cm × 3.8 cm × 3.8 cm...
- to 4 and a
specific gravity of 2.1 to 2.2. It
commonly occurs as a
devitrification product of
volcanic gl****
shards in tuff and as
vesicle fillings in...
-
Graphic texture is
commonly created by
exsolution and
devitrification and
immiscibility processes in
igneous rocks. It is
called 'graphic'
because the...
- can be
caused by
chemical weathering (oxidation, mineralization) and
devitrification.
Proposed origins for
Edeowie and
other similar lechatelierites include...
- low
surface tension, high
index of refraction, and
resistance to
devitrification. Lead used in the
manufacture of
commercial glazes are molecularly...
- m****ive
sulfide deposit.
Typical alteration textures ****ociated with
devitrification of
submarine volcanic rocks such as
rhyolitic gl****es,
notably formation...
