PETROG and digital petrography

Features and articles about PETROG and digital petrography in general

10 years and counting

2012 marked 10 years of the microstepper

10 years of the microStepper

Developing PETROG

How PETROG is moving forward


Welsh slate

Recognition for Welsh slate

Welsh Slate

Point counting

How point counting is used in geology.

Point Counting

Why choose CVS ?

Why choose Conwy Valley Systems ? Read about the PETROG development history.

Replacing point counter

Replacing your old Swift automatic point counter

Replacing a point counter

Electro-mechanical stage

The history of the electro-mechanical stepping stage

Electro-mechanical stepper

Queen’s Award 2011

In 2011 Conwy Valley Systems was awarded the Queen’s Award for Enterprise : Innovation

Queens Award 2011

Trask sorting

Explanation of the Trask sorting co-efficient.

Trask sorting


PETROG is being used with ceramics.

Ceramics in Archaeology

Case study

Embarcadero have a case study on Conwy Valley Systems’ use of Delphi to build PETROG.

Delphi by Embarcadero

Research Paper

A collection of published papers that reference PETROG.”

Papers Referencing PETROG

  e-mail :

Registered in England and Wales company # 03449181.
 This website does not use cookies.

 © Copyright: Conwy Valley Systems Limited  2000-2018.

Conwy Valley Systems Limited,

Wells House, 12, Hawes Drive,

Deganwy, Conwy, LL31 9BW, United Kingdom.

VAT# GB 741 5190 48

A Geoscience Wales  founding member.