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Petrography

Petrogaphy is the detailed systematic description and classification of rocks. Petrography is largely a descriptive science. Identification of minerals, structures and textures is typically done in hand specimen and in …

Natural Stone Analysis

We are specialists in the mineralogical and petrographic investigation of natural stones, rocks and mineral resources by microscopic analysis. Looking for an independent, reliable third-party, analysing natural stones, rocks and …

TriAngle paper will be printed soon!

Warnsloh, J.M. (2015) TriAngle: A Microsoft Excel™ spreadsheet template for the generation of triangular plots. N. Jahrb. Miner./J. Min. Geochem., 192, 1, 101-105. DOI: 10.1127/0077-7757/2014/0267 will be available in a …

TriAngle 1.2 is ready!

A new version of TriAngle is now ready for download at the TriAngle sub page. New feature: Changes in layout and line formats Feldspar diagram looks now better due to …