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Articles by Lynda Lawson
Global review of human waste-picking and its contribution to poverty alleviation and a circular economy
Waste pickers have drawn the increasing attention of scholars in a range of academic disciplinary fields. These have included environmental and sanitation engineering, political economics, urban anthropology, urban geography, and other scholarly works (Dias 2016). Waste pickers collect materials thrown away by others, including metal, food, clothes, paper, and plastics. They collect these materials from different sources such as streets, on landfills and open dumpsites areas (WIEGO 2020a).
Sapphire secrets-they aren't all blue, and mining them requires luck plus labour
It was not until recently when I met a female sapphire miner in Madagascar that I began to appreciate the hard labour involved in the mining of these stones across Africa and Asia. Sapphires are crystals of the mineral corundum, made up mostly of atoms of aluminium and oxygen in a 2 to 3 ratio (Al₂0₃).
Sapphire secrets: they aren't all blue, and mining them requires luck plus labour
By Lynda Lawson, PhD candidate , The University of Queensland My favourite gem is an occasional series where we ask a scientist to share the fascinating geological and social features of a beautiful rock. Part 1 is here. I first remember seeing sapphires as a teenager in a jeweller’s shop in Silver Street in pre-Khmer Rouge Phnom Penh – the deep saturated blues of the gems from Palin on the border with Thailand were captivating.
they aren't all blue, and mining them requires luck plus labour
My favourite gem is an occasional series where we ask a scientist to share the fascinating geological and social features of a beautiful rock. Part 1 is here. I first remember seeing sapphires as a teenager in a jeweller’s shop in Silver Street in pre-Khmer Rouge Phnom Penh – the deep saturated blues of the gems from Palin on the border with Thailand were captivating. The sapphires my father bought that day are still in the family long after any trace of Silver Street has disappeared.
Madagascar Sapphires: Teaching Gemology for Equal Opportunity
Follow Lawson Gems Director Charles Lawson along with his colleagues as they travel to a number of rural villages in Madagascar teaching basic field gemmolog...
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