At the heart of crystallography lies an object – the crystal. Crystallography is concerned with the laws governing the crystalline state of solid materials, with the arrangement of atoms in crystals, and with their physical and chemical properties, their synthesis and their growth. <...>

This is volume five in the series of picture books that I am creating for educational purposes. All images in this volume were created using the program JPOWD from MDI (www.materialsdata.com). The structures presented here correspond to the crystal structure gallery on my website (www.jcrystal.com/steffenweber/gallery/StructureTypes/st1.html). On that website you can also find further data, such as unit cell parameters and atom coordinates . 

Crystallography – the study of crystals, their structures and properties – has antecedents predating modern science. Despite this long history, the subject remains dynamic and is changing rapidly. Protein crystallography is but one example. An understanding of many biological processes at a molecular level, already leading to a fundamental change in the treatment of many chronic illnesses, has been built upon protein crystal structure studies of awesome complexity. Other areas of rapid growth stand out. The development of computer software has revolutionised the way in which crystal structures can be depicted. The presentation of such structures as nets, for example, leads to images that compare in beauty with the best of abstract art <...>

NI 43-101 is a rule that governs how issuers disclose scientific and technical information about their mineral projects to the public. To assist mining industry participants and their advisors in understanding and applying NI 43-101, we compiled a summary of questions and CSA staff responses (Frequently Asked Questions or FAQs) that was first published on October 19, 2001 and was revised on February 8, 2002. Attached to this notice is an update to the FAQs.

We update the summary of FAQs from time to time to assist in the interpretation and application of NI 43-101 as new issues arise. We continuously update this summary of FAQs rather than create supplemental summaries in order to retain one repository of interpretative guidance for the rule. We intend to publish another comprehensive update later this year.