fitzcoraldo wrote:
It's hard to find images of pitchstone implements on the web, most of the reports tend to mention flakes but pitchstone is definitely part of the same family as obsidian i.e a volcanic glass.
there are some images of unworked pitchstone here
http://www.huntsearch.gla.ac.uk/cgi-bin/foxweb/huntsearch/SummaryResults.fwx?collection=all&Searchterm=pitchstone+and+arran&browsemode=on&browseset=Arran+pitchstones
There is also the Scottish pitchstone project which is currently recording all known pieces of archaeological pitchstone onto a database with the aim of re-interpreting the distribution of pitchstone across northern Britain.
There is a Ludovic Mann paper on pitchstone and obsidian some where in psas , it's not terrbly exciting iirc but probably worth a read . there are some images of unworked pitchstone here
http://www.huntsearch.gla.ac.uk/cgi-bin/foxweb/huntsearch/SummaryResults.fwx?collection=all&Searchterm=pitchstone+and+arran&browsemode=on&browseset=Arran+pitchstones
There is also the Scottish pitchstone project which is currently recording all known pieces of archaeological pitchstone onto a database with the aim of re-interpreting the distribution of pitchstone across northern Britain.
cheers
fitz