History of Technology in India, Vol. I: From Antiquity to c. 1200 A.D. v1.c17.s3.t4.7

v1.c17.s3.t4.7

It is hard to identify the precise locations of the place- names mentioned in Arthaśāstra, Bṛhatsaṃhitā, Ratnaparīkṣā, Agastimata etc. regarding the diamond fields but we may conjecture the following locations: eighty miles south-east of Nagpur on the Sath river, a tributary of Wainganga (Vena of the Bṛhatsaṃhitā), the present Wairagadh, anciently known as Vajragṛha, the Kośala region of Ākarāvantī around the famous Pānnā in Madhya Pradesh, the region around the Golconda mines formerly known as Matanga, the Kalinga mine of Hirā-Kund (literally means diamond mine), the alluvial sources from the Mahanadi in the Sambalpur district, the Koel river etc.