Here is some stuff that may be useful, charts, explanations, formulas and staining techniques also links to other references. All of this stuff is taken from known text and references are  given.

MODIFIED STAINING TECHNIQUE FOR STAINING CARBONATES IN THIN SECTION.

ALSO DETAILS ABOUT  STAINING FELDSPARS

HERE ARE ALL THE ANSWERS TO  YOUR PETROGRAPHY QUESTIONS CHECK OUT THE

 Atlas of minerals in reflected-light 

 Atlas of Igneous and Metamorphic Rocks, Minerals and Textures  

 Index of minerals in thin section.

IF YOU HAVE ANY QUESTIONS ABOUT SPECIFIC TERMINOLOGY CHECK OUT

 Glossary of terms 

Glossary of geologic terms 

 Standard microscopy terminology . 

THERE ARE NUMEROUS SITES TO HELP WALK YOU THRU PETROGRAPHY INCLUDING 

Petrographic Concepts  

Petrographic Workshop.

Study of minerals with the petrographic microscope 

THERE ARE SEVERAL SITES DEDICATED TO REFLECTED LIGHT INCLUDING 

 Reflected Light Microscopy: Optical Pathways,  Reflected-light microscopy 

Introduction to ore microscopy 

Virtual atlas of opaque and ore minerals and their associations.

FOR SPECIFIC MINERAL AND ROCK PROPERTIES CHECK OUT

 Optical properties of common minerals 

 Optical Properties  

 Minerals Under the Microscope. 

EVERY DAY NEW SITES PERTAINING TO GEOLOGY, PETROGRAPHY AND  ARCHAEOLOGY SPRING UP HERE ARE A FEW MORE OF INTEREST

A must see site DESERT ARCHAEOLOGY

Ceramic Petrography

Archaeological Micro morphology Image Library  

Glacial Micro morphology. 

Introduction to microscopy and photography.

Micro morphology  Laboratory, Department of Archaeology, Boston University.

 Photomicrographs  A MUST SEE SITE

Vendors  THESE GUYS MAY HAVE WHAT YOUR LOOKING FOR

AMERICAN GEOLOGICAL INSTITUTE

IF YOU HAVE SITE YOU WOULD LIKE TO RECOMMEND DROP ME AN E-MAIL

Have you taken a really close look?