Ceylon Graphite is a public company listed on the TSX Venture Exchange (CYL:TSX-V) currently exploring and developing graphite mines in historic resource jurisdictions in Sri Lanka. It holds a land package constituting 121 km² grids containing historic vein graphite deposits. These unique and comparatively higher margin vein (lump) deposits currently make-up less than 1% of the world graphite production. These exploration grids represent the majority of known historic graphite resources in Sri Lanka. The relevant areas in which these grids reside have previously had historical production dating back to the 1920’s and 1930’s.
Vein graphite is known under various names including crystalline vein, Plumbago, Sri Lankan graphite, and Ceylon graphite. The name “Sri Lankan” and “Ceylon” are commonly used for vein graphite since the island nation of Sri Lanka (formally Ceylon) is the only area to produce this material in commercial quantities. Serious mining and exportation of Ceylon graphite began about 1824, however the unusual deposits of Ceylon have been known, and apparently used locally, since the middle of the1600s.
Of all the natural graphite materials vein graphite is probably the most difficult to describe geologically and various theories of its origin have been presented. As the name suggests, vein graphite is a true vein mineral as opposed to a seam mineral (amorphous graphite) or a mineral that is disseminated throughout the ore rock (as in flake graphite). Seam minerals have some unique properties including their being non-contemporaneous with the country rock, steeply inclined (vein orientation), and subjected to filling by a host of minerals, especially those of hydrothermal origin.
All currently available commercial vein graphite is mined in Sri Lanka.