
Image note
Three original interpretations of recycled bottle glass & blown form, informed by Recycling at Ngwenya Glass. These images explore material and spatial ideas; they are not documentary views or measured reconstructions of the reference. The palette is drawn from the material portrait.
Publication credit: The Chromologium.
Image credits and reuseThe colour strip is the entry’s study palette. Artwork sources and image credits and reuse terms are recorded in the archive.
Artwork recordThree views of one material idea.
Ngwenya Glass describes its production in Eswatini as using recycled bottle glass. This maker reference follows the transformation from discarded containers to shaped glass objects.
Read the material study01 / Reading the material
A colour held in thickness
Ngwenya Glass provides a specific maker reference for the transformation of recycled bottle glass into new forms. A thick base, a thin rim and a curved wall can show different intensities of colour within one object. The material’s appearance cannot be described by a single flat swatch.

02 / From surface to space
Read the whole.
Then the edge.
A glass form holds both an interior volume and a changing view of what lies beyond it. Move the light or background before changing the object. The resulting shifts make curvature and thickness visible, while a simple silhouette keeps the study readable.
Compare the thick base of a glass form with its thin rim. How do curved surfaces change the colour and brightness of light passing through them?
03 / Colour in context
A palette you can work with.
Five tones drawn from the material portrait. Select a colour, compare it on paper and ink, or copy its value into your own study.
Surface
#81714f
Colour values & paper / ink comparison
oklch(0.555 0.053 85.511) · primary
The colour stays fixed as its surroundings change.
Try the bench exercise
04 / At the bench
Make the observation tangible.
Compare two original glass-like forms with different wall thicknesses against pale and dark grounds. Record the lighting conditions. Keep the exercise visual; do not infer an exact refractive index or recycling percentage from the image.
Keep a view of the whole beside a close detail. Note the material, lighting and the one variable you changed.

Source & orientation
Keep the reference close.
Ngwenya Glass. (n.d.). Recycling at Ngwenya Glass. Retrieved October 10, 2026.
The material readings and bench exercise are editorial studies of this particular reference. The artwork explores its material ideas; the linked source documents the place.
Artwork & cartographic records
Artwork record · Geographic plate record. Map geometry: Natural Earth, public domain. The archive follows its map’s place names, including territories and disputed areas.
A closer look
Questions about this study
What does this study of Eswatini focus on?
Ngwenya Glass describes its production in Eswatini as using recycled bottle glass. This maker reference follows the transformation from discarded containers to shaped glass objects.
Where can I find the original reference?
Recycling at Ngwenya Glass, published by Ngwenya Glass. The artwork explores the reference’s material ideas; the linked source documents the place.
What could I try at the bench?
Compare two original glass-like forms with different wall thicknesses against pale and dark grounds. Record the lighting conditions. Keep the exercise visual; do not infer an exact refractive index or recycling percentage from the image.



