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Structured in the form of a dichotomous key, comparable to those
widely used in botany, the mineral key provides an efficient and
systematic approach to identifying rock-forming minerals in
thin-section. This unique approach covers 150 plus of the most
commonly encountered rock-forming minerals, plus a few rarer but
noteworthy ones. Illustrated in full colour, with 330 plus high
quality mineral photomicrographs from a worldwide collection of
igneous, metamorphic, and sedimentary rocks, it also provides a
comprehensive atlas of rock-forming minerals in thin-section.
Commencing with a brief introduction to mineral systems, and the
properties of minerals in plane-polarised and cross-polarised
light, the mineral key also includes line drawings, tables of
mineral properties and an interference colour chart, to further aid
mineral identification. To minimise the chance of
misidentification, and enable less experienced petrologists to use
the key with confidence, the key has been arranged to prioritise
those properties that are most easily recognised. Designed for
simplicity and ease of use, it is primarily aimed at undergraduate
and postgraduate students of mineralogy and petrology, but should
also provide a valuable source of reference for all practising
geologists dealing with rock thin sections and their
interpretation.
The key for identification of rock-forming minerals provides an
efficient and systematic approach to identifying minerals in
thin-section. It is structured in the form of a dichotomous key,
comparable to those widely used in botany and entomology. Whilst
some previous mineralogy and petrology texts have produced
tabulated summaries of minerals with similar properties, the
present key gives a unique solution for each mineral.
The key covers more than 150 of the most commonly encountered
rock-forming minerals, plus a few rarer but noteworthy minerals,
indicative of particular conditions. Illustrated in full colour,
with high quality photomicrographs of each mineral, it also
provides the most comprehensive atlas of rock-forming minerals
currently available. It is primarily aimed at undergraduate and
postgraduate students of mineralogy and petrology, but should also
provide a valuable source of reference for all practising
geologists dealing with rock thin-sections and their
interpretation.
Although including a brief introduction to the properties of
minerals in this-section, the key largely assumes that the user has
a basic understanding of optical mineralogy and is able to
determine basic mineral properties in thin-section using
plane-polarised and cross-polarised light. The key has been
designed in such a way as to prioritise those properties that are
most easily defined, and thus less ambiguous. This aims to minimise
the chance of misidentification and enable the less experienced
petrologist to use the key with confidence. The key has been
carefully designed to enable different cuts of minerals (e.g.
end-section and side sections) to be recognised and keyed out.
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