31 Exposures to amphiboles
and mixed fiber types were grouped.
Step-wise annealing (3-10 temperature steps) performed on three samples of rock forming amphibole
with the ratio of [sup.
Chrysotile appeared to be less fibrogenic and far less tumorigenic than the commercial amphiboles
crocidolite and amosite.
These schistose rocks are mainly quartz schist and amphibole
A representative suite of samples from mafic intrusions on Campobello Island was collected for scanning electron microprobe (SEM) analyses to quantify our petrographic analysis of amphibole
, pyroxene, and plagioclase (Table I).
There are two main families of asbestos: amphiboles
(tremolite, actinolite, crocidolite) and serpentines (chrysorile, antigorite, lizard-ite).
The main mafic mineral of this rock, amphibole
, is a magnesian hornblende, alkali amphiboles
being entirely absent here.
20) As to the claim of the greater reliability of asbestos body counts by light microscopy, we have shown that the severity of fibrosis in asbestosis correlates best with amphibole
fiber counts measured by scanning electron microscopy and not with asbestos body counts determined by light microscopy.
17-55]), quartz, biotite (mostly eastonitic), orthoclase and amphibole
(magnesio-hornblende and edenite), with accessory acicular apatite and zircon in a hipidiomorphic granular texture (Kocak et al.
the pattern is non-linear as a result of the combination of two segments, suggesting that they formed under conditions of non-steady state growth and nucleation.
Collector's Guide to the Amphibole
Group covers an important, beautiful set of crystals--the amphiboles
--and organizes them in such a way that mineral collectors will understand their properties and structural features.
Compared to amphiboles
in the tremolite-actinolite-ferroactinolite series (Deer et al.
2011); and amphiboles
and erionite in Southern Nevada (Baumann et al.
A pale green amphibole
is also present in much lower proportions, generally forming thin margins around large brown amphiboles
2012), indicating that amphiboles
can accurately record the pressure and temperature evolution of a magma (Zen, 1989; Tulloch et al.