This sand is from the collection of the late Ivor Treby. It was collected at Praefurnium at Hypocaust level, Roman thermae, Varna.
It is comprised of charcoal fragments, sparse shell fragments (oyster?), translucent to transparent angular to rounded quartz 0.1-1.3 m in a dark brown ashy matrix.
Ivor was a biochemistry teacher and poet with over 400 published poems. He considered himself to be a gay literary activist.
Ivor took early retirement in the 1980s and dedicated his time to researching two Victorian/Edwardian women poets who wrote under the pseudonym Michael Field. He also spent much of the next 20 years travelling abroad. Wherever he went he collected samples of sand and sediment.