The numbers of specimens in geological collections in the UK alone reach into the tens of millions. These collections are important for research, education and also commercially. Museums hold collections, but so do individuals and companies; exploration companies keep rock core samples which can be as valuable as £1,000 per meter.

There is now sufficient evidence to dispel the myth that geological collections are inherently stable and require fewer resources to preserve them than other areas of museum collections. In fact, a proportion of geological collections demand a level of attention and maintenance comparable with archaeological metal collections. This includes similar environmental and pollution-related considerations.

About 10% of known mineral species are sensitive to changes in temperature or humidity, or may react with air pollutants. One such mineral is pyrite – common in geological collections and one that is particularly troublesome. However, despite centuries of research on pyrite decay there is a dearth of knowledge in subjects that would help museums improve the effectiveness of their care of geological collections. This includes the categorisation of damage to specimens, methodologies for objective routine condition assessment, the definition of an adequate storage environment, and successful conservation treatments.

Currently available methodologies are not suitable for routine collection monitoring, results are not necessarily replicable, and, in the absence of guidance on suitable storage conditions, triggers and the suitability of conservation actions are difficult to determine. We need a more robust approach to the delivery of preventive conservation of geological collections.

We have now teamed up with the EPSRC Centre for Doctoral Training in Science and Engineering in Arts, Heritage and Archaeology (SEAHA) at University College London, University of Oxford and University of Brighton to investigate these aspects of preservation of geological collections. A four-year studentship has been advertised which will be based at Oxford University but spend a considerable amount of time working at National Museum Cardiff. If you are interested in this subject, and have a background in, ideally, geology, chemistry or engineering, please do get in touch.

Find out more about Care of Collections at Amgueddfa Cymru - National Museum Wales here and follow us on Twitter.

Museum displays get dusty, inevitably, but this dust won’t be there for long. Armed with a paintbrush and a portable vacuum cleaner the Preventive Conservation team is ready to move through the museum galleries, cleaning as we go.

Once upon a time, gallery maintenance was an activity hidden behind closed doors, only undertaken when there were no visitors in the building. But things are changing, and what we once did behind closed doors now happens whilst the museum is open. Everyone can see what happens behind the scenes and Preventative Conservation becomes a temporary display itself. By working in front of an audience we can explain what we do and why we do it, after all it may look strange carefully dusting a painting. If it looks as if we smudge the paint on a painting: we don't - we are actually cleaning finger prints off the protective glass.

So why do we have to do this in the first place? Firstly dust doesn’t look very good, especially when you notice the frame and even the protective glass has dust on it – things like that would give a museum an air of neglect. But this is not the only reason; dust also has the potential to damage our museum’s collections. Dust can become sticky and attracts water (hygroscopic), which can cause mould. Dust can also attract pests, leaving museum collections vulnerable to damage from insects. By cleaning museum collections we can prevent dust build up, reducing risks to collections.

Museum collections will always need to be looked after, and removing dust is one simple way we can prevent multiple forms of damage to our heritage. Keep a look out for us in the museum galleries brushing a sculpture, we are always happy to talk about what we are doing!

P.S. Look out for the other activities we are doing in the galleries, we may be repackaging museum collections to reduce the risk of pest damage, checking pest traps, or cleaning the Natural History and Geology displays. There is always Preventative Conservation to do in the museum!

This guest blog was written by our volunteer Will Tregaskes who is giving a talk on this subject at the 'Conservation Matters in Wales' conference on Thursday 8th June 2017 at Glynn Vivian Art Gallery, Swansea.

Find out more about Care of Collections at Amgueddfa Cymru - National Museum Wales here and follow us on Twitter.

Whether you love L. S. Lowry, Lucian Freud or Richard Long, you know that when you visit Amgueddfa Cymru – National Museum Wales you can always see outstanding examples of international modern and contemporary art. What you might not know is that a significant part of that collection is here thanks to The Derek Williams Trust, which lends Amgueddfa Cymru over 260 of its most important works of twentieth and twenty-first century art.

This week sees the launch of The Derek Williams Trust website, a fantastic resource for anyone interested in exploring this collection. The site will enable you to search for art works and artists, and discover more about the Trust and its work with Amgueddfa Cymru.

Derek Williams was a Cardiff-based chartered surveyor and art lover, who had a particular interest in mid-twentieth century British art. He collected a large number of works by John Piper and Ceri Richards, which were supported with works by major figures such as Ben Nicholson, Henry Moore, David Jones, Ivon Hitchens and Josef Herman. Following Williams’ death in 1984, his collection and the residue of his estate were left in trust. Since that time, The Derek Williams Trust has undertaken the care, enhancement and public display of the collection, and in turn lends the collection to Amgueddfa Cymru – National Museum Wales. The generous support of Trust has transformed the Museum’s collection of twentieth century art and parallels the great bequests of French Impressionist art made by Gwendoline and Margaret Davies a generation earlier.

Since 1992, The Derek Williams Trust has also been working with Amgueddfa Cymru to build its own collection of modern and contemporary art, and recent purchases include work by Howard Hodgkin, George Shaw, Anthony Caro and Clare Woods. The Trust also provides financial support for Museum purchases, and funds the biennial Artes Mundi Derek Williams Trust Purchase Award – recent recipients include Tanja Bruguera, Ragnar Kjartansson and Bedwyr Williams.

For the latest news from The Derek Williams Trust collection, why not follow us on Instagram and Twitter?

Mae pob math o ryfeddodau yn Amgueddfa Genedlaethol Caerdydd, ond mae’n debyg mai’r deinosoriaid yw hoff atyniad ein hymwelwyr. Mae oriel Esblygiad Cymru yn aml dan ei sang, ac mae galw mawr am ein sesiynau i ysgolion ar thema deinosoriaid.

Dyna pam bod Amgueddfa Cymru yn cyhoeddi’r eBook newydd, Ditectifs y Deinosoriaid. Mae’r adnodd rhyngweithiol, sydd wedi’i anelu at ymwelwyr 7–11 oed, yn troi ymwelwyr yn balaeontolegwyr a’u galluogi i archwilio ffosilau go iawn o’n casgliadau. Mae’r eBook yn cynnwys ffotograffau o sbesimenau yn ogystal â darluniau Frank Duffy o’n stori i blant, Arwyn yr Anturiwr.

Chwilia am ffosil deinosor, dysga am fwyd y deinosoriaid a rhyfeddu at ba mor fawr oedd traed T. rex drwy gyfrwng gemau, posau a gweithgareddau rhyngweithiol sy’n rhoi addysg yn nwylo’r defnyddiwr. Mae’n gyfle hefyd i gwrdd â’r deinosor Cymreig newydd, Dracoraptor hanigani.

Gellir lawrlwytho’r eBook ar iPad neu ddyfais Apple arall, ac mae modd ei ddefnyddio adref, neu ddod ag ef i’r Amgueddfa i archwilio’r orielau. Chwilia am y symbol yma am fwy o ffeithiau deinosor yn oriel Esblygiad Cymru.

Rhanna dy hoff ddarganfyddiad deinosoraidd o’r eBook neu’r Amgueddfa ar Twitter, drwy dagio @Museum_CdfLearn. Cofia chwarae’r gêm ‘dylunio deinosor’ a rhannu hynny ar Twitter hefyd!

Fersiwn Apple / PDF

Os nad yw hynny’n ddigon o ddeinosoriaid, beth am ymweld â’n harddangosfa newydd, Deinosoriaid yn Deor? Mae’n agor ar 27 Mai, a dyma’r cyfle cyntaf i weld yr arddangosfa wych hon i’r teulu yng Nghymru. Mae’n cynnwys sgerbydau deinosor maint llawn, modelau o embryonau ac wyau deinosor, a hyd yn oed nyth deinosor anferth, 2.5 medr! Mae mwy o fanylion ar ein tudalen Ddigwyddiadau.