Glossary & Definitions

Glossary of terms and abbreviations found on the site

     You will find below a glossary of terms and abbreviations found on this site. I am also including links to an English-French dictionary and a French-English dictionnary provided by Philippe Saget of the French Micromineralogy Association that will prove invaluable in correspondance or reading French mineralogical literature.


AP – Altered pegmatites.
BR – Igneous breccias.
Breccia – Rock consisting of sharp fragments
in a fine grained matrix.
FR – Rock forming minerals.
HF – Hornfels.
Hornfels – Fine grained silicate rock produced by metamorphism.
MC – Miarolitic cavities.
Miarolitic – Irregular cavities into which well-formed crystals project.
MSH – Mont Saint-Hilaire.
MX – Marble xenoliths.
PE – Unaltered pegmatites
Pegmatite – Natural igneous rock formation usually characterized by a coarse texture caused by crystallization from an exceptionally fluid magma rich in mineralizers containing rare elements
Rarity factors – Rarity factor tables from common to extremely rare species as explained on the legend page.
SEM – Scanning electron microscope.
SS – Sodalite syenite.
SX – Incorrectly called sodalite xenolith,
proper name is tawite.
Syenite – Intrusive igneous rock composed of
dominant alkaline feldspar.
Xenolith – Fragment of a rock included in another rock.