British Museum blog

After-excavation care at Amara West

Elisabeth Pamberg, archaeological illustrator/conservator

Salt crystals on the rim of beer jar C8008

I visited the stores where we keep the objects excavated from the site, to check they were in good condition. Objects from a site like this one often contain salts that could damage them, so I wasn’t surprised to observe that several objects had salt crystals on them, particularly the pottery and some stone sculpture.

The artefacts retrieved at Amara West are subject to environmental conditions which include high humidity and salinity, the result of the site’s proximity to the Nile. Ceramic and stone buried in soil absorb the salts present in the deposits.

Beer jar C8007 after desalination this week

Following my advice, and discussions with Marie Millet and Neal Spencer, two beer jars from grave 201 were chosen for treatment, as they were affected by salt, with a thick visible layer of white concretions.

The salts are harmful and are not only an aesthetic issue; they obscure the object’s surface and can lead to surface exfoliation – the surface lifting off. Eventually, the crystallisation of salts can lead to disintegration.

The most efficient way to extract salt consists of soaking the objects in water over a long period of time, though extra steps need to be taken with fragile objects, or those bearing paint.

The removal of soluble salts can be a very lengthy procedure. In this case, the jars were bathed repeatedly in plenty of warm water for a period of eight days with the water being changed every day.

Unfortunately, no distilled or deionised water and conductivity meter (to measure the decreasing level of salt) is available here. Nonetheless, soluble salts appear to have completely disappeared from the jars, ensuring their long-term preservation.

Looking to future seasons, we might consider testing salt levels in the local river water, which is used for washing all pottery prior to study, recording and storage.

If you would like to leave a comment click on the title

Filed under: Amara West, Archaeology, , , , ,

Receive notifications of new posts by email.

Join 16,439 other followers

Categories

Follow @britishmuseum on Twitter

British Museum on Instagram

This is a great shot of a sarcophagus by @ss.shri – it shows how well preserved the 2,600-year-old craftsmanship is. It was made for Sasobek, who was the vizier (prime minister) of the northern part of Egypt during the reign of Psamtek I (664–610 BC). His face is naturalistic and shows the use of makeup, but it’s probably not an accurate likeness. Many human-shaped sarcophagi had exaggerated facial features during this period. 
Don’t forget you can share your photos with us by using #mybritishmuseum
#regram #AncientEgypt #statue #sculpture #Egypt #history #BritishMuseum Our Egyptian Sculpture Gallery (Room 4) spans over 3,000 years of history! The gallery contains iconic objects such as the Rosetta Stone – the key to deciphering ancient Egyptian hieroglyphs – and the colossal 7.25 ton statue of the pharaoh Ramesses II. What’s your favourite object in this gallery?
#AncientEgypt #Egypt #Thebes #RosettaStone #sculpture #statue #history #BritishMuseum #mybritishmuseum We love this strong image taken by @nickyhofland. These powerful figures of King Senwosret III stand in our Egyptian Sculpture Gallery (Room 4). He reigned from 1874 to 1855 BC. These representations of him are interesting because they aren’t idealised – you can see expressive lines and furrows on his face. This contrasts to earlier kings who appear youthful throughout their reign. The king also has peculiarly large ears in these statues, which perhaps symbolised his readiness to listen. If you’d like your photos to be regrammed, tag #mybritishmuseum

#regram #AncientEgypt #statue #sculpture #Egypt #history #BritishMuseum This striking mosaic was made around 500 years ago in Mexico. It’s a pectoral – a type of jewellery designed to be worn on the chest. Double-headed serpents (known as maquizcoatl) were considered to be the bearers of bad omens and were associated with figures of authority who may have worn this type of jewellery as part of a ritual process. The object is expertly decorated with tiny pieces of turquoise that create textures and shapes on the serpent’s ‘skin’. The eye sockets could have been inlaid with dark gemstones giving the impression of flickering eyes. 
#turquoise #Aztec #Mixtec #serpent #jewellery #Mexico #🇲🇽 Eagle costumes were worn by prestigious warriors in Mixtec and Aztec culture, and the handle of this knife, made around 500 years ago in Mexico, represents a crouching eagle warrior. In mythology the eagle represented the power of the day and was believed to carry the sun into the sky from the underworld each morning. This object is decorated with turquoise, malachite, and four types of shell, with a flint blade. Highly decorated knives like this one were probably used in ceremonies or symbolically rather than for practical tasks – the construction of this knife suggests it wouldn’t be sturdy enough to be used for cutting.

#Aztec #Mixtec #knife #eagle #turquoise #Mexico #🇲🇽 This mask represents the Aztec god of rain, Tlaloc, who is characterised by large eyes and a twisted nose. The mask is formed from two snakes which intertwine to create the face, their tails forming the eyebrows (originally gold). This object has also been associated with Quetzalcoatl, the feather serpent, because of the feathers which hang down from the eyebrows. Made in Mexico about 500 years ago, the mask may have been worn by a priest during rituals.

#Aztec #Mixtec #turquoise #mask #Mexico #🇲🇽
%d bloggers like this: