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INDIA STATE FIELD GUIDE

Rockhounding in Tamil Nadu

Quick answer

Tamil Nadu currently has 61 sourced map records in this explorer. Tamil Nadu is one of India’s most mineral-diverse field-research states. The Karur–Kangeyam belt is known for aquamarine/beryl, ruby and sapphire, iolite, moonstone/sunstone, spinel, quartz and amethyst; Salem–Namakkal adds corundum, garnet, sapphirine, magnesite and carbonatite geology; Coimbatore, Erode and Namakkal have documented quartz–feldspar veins and leases; and Kanniyakumari hosts major heavy-mineral sands. These are geological occurrences, not blanket collecting permissions.

Open Tamil Nadu in the interactive mapView India map
61mapped localities
3permission required
23status not confirmed
35viewing/protected

Materials documented in Tamil Nadu

Quartz 39 Feldspar 25 Pegmatite 8 Beryl 7 Garnet 7 Calcite 7 Zircon 6 Rutile 6 Apatite 6 Aquamarine 5 Amethyst 5 Carbonatite 5 Ilmenite 5 Spinel 4

Why Tamil Nadu is a major gemstone, pegmatite and mineral-geology state

Indian Bureau of Mines records Tamil Nadu as a leading holder of national vermiculite, dunite, garnet, rutile, ilmenite and molybdenum resources, with feldspar and quartz/silica in many districts. Specialist mineral data document the Karur–Kangeyam gem belt, while official district survey reports identify village-level quartz–feldspar occurrences in Coimbatore, Erode and Namakkal. This release preserves industrial, quarry and lower-precision records as non-navigable or contextual entries rather than deleting them or implying recreational access.

Indian Bureau of Mines — Tamil Nadu, Indian Minerals Yearbook 2024 ↗

Mapped locality guides

Karur Gem–Mineral District ContextAquamarine, Beryl, Ruby, SapphireCollecting status not confirmedAravakurichi Beryl–Quartz LocalityBeryl, Quartz, Schorl, FluorapatiteCollecting status not confirmedKangeyam Gem-Mineral BeltAquamarine, Iolite, Ruby, SapphireCollecting status not confirmedSivamalai Alkaline IntrusionAlkaline Rocks, Nepheline Syenite, Feldspar, ZirconCollecting status not confirmedSittampundi Layered ComplexCorundum, Pyrope, Grossular, SapphirineCollecting status not confirmedSankari Emerald–Beryl ContextEmerald, Beryl, Quartz, SpinelCollecting status not confirmedKullampatti Quartz OccurrenceQuartz, Feldspar, MagnetiteCollecting status not confirmedKeeranur Quartz LocalityQuartz, Feldspar, HematiteCollecting status not confirmedKosavankovilpatti Pyrope–Garnet LocalityPyrope, Garnet, Metamorphic MineralsCollecting status not confirmedVaranavasi Field Fossil MuseumAmmonite Fossils, Petrified Wood, Cretaceous Fossils, RocksReference / viewing onlyAriyalur Fossil-Bearing Badlands ContextAmmonite Fossils, Petrified Wood, Cretaceous FossilsReference / viewing onlyKuppanur Quartz–Feldspar VeinsQuartz, Feldspar, PegmatiteCollecting status not confirmedKanuvakkarai Quartz–Feldspar VeinsQuartz, Feldspar, PegmatiteCollecting status not confirmedBogampatti Quartz–Feldspar VeinsQuartz, Feldspar, PegmatiteCollecting status not confirmedVadavalli Quartz–Feldspar VeinsQuartz, Feldspar, PegmatiteCollecting status not confirmedChettipalayam Quartz–Feldspar VeinsQuartz, Feldspar, PegmatiteCollecting status not confirmedMettuvavi Quartz–Feldspar VeinsQuartz, Feldspar, PegmatiteCollecting status not confirmedIluppanatham Quartz–Feldspar VeinsQuartz, Feldspar, PegmatiteCollecting status not confirmedVairamangalam Mica OccurrenceMica, Feldspar, QuartzCollecting status not confirmedPunjai Puliampatti Muscovite OccurrenceMuscovite, Mica, QuartzCollecting status not confirmedSamalpatti Carbonatite ComplexCarbonatite, Calcite, Apatite, Alkaline MineralsReference / viewing onlySevattur Carbonatite ComplexCarbonatite, Calcite, Apatite, Alkaline MineralsReference / viewing onlySevathur Alkaline MassifAlkaline Rocks, Syenite, Nepheline MineralsReference / viewing onlySalampatti Alkaline MassifAlkaline Rocks, Syenite, FeldsparReference / viewing onlyKambammettu Carbonatite ContextCarbonatite, Calcite, Apatite, Alkaline MineralsReference / viewing onlyKalpakkam Coastal Heavy-Mineral ContextIlmenite, Rutile, Garnet, ZirconCollecting status not confirmedSivaganga Graphite District ContextGraphite, Quartz, Metamorphic RocksReference / viewing onlyVellore Vermiculite–Apatite District ContextVermiculite, Apatite, Quartz, MagnesiteCollecting status not confirmedNilgiris Bauxite District ContextBauxite, Aluminium MineralsReference / viewing onlyRamanathapuram Garnet–Gypsum Coastal ContextGarnet, Gypsum, Heavy Minerals, LimestoneCollecting status not confirmedTirunelveli Heavy-Mineral Sands ContextIlmenite, Rutile, Garnet, Heavy MineralsReference / viewing onlyThoothukudi Heavy-Mineral Sands ContextIlmenite, Rutile, Heavy Minerals, GypsumReference / viewing onlyVirudhunagar Quartz–Gypsum ContextQuartz, Silica, Gypsum, LimestoneCollecting status not confirmedDindigul Bauxite–Feldspar District ContextBauxite, Feldspar, Quartz, LimestoneCollecting status not confirmedKanniyakumari Zircon–Garnet Coastal ContextZircon, Garnet, Ilmenite, RutileReference / viewing onlyKeeranur (Karur) Gem-Hunt Village ContextRuby/cordierite, Beryl, Aquamarine, QuartzPermission requiredVaravanai Gem-Hunt Village ContextRuby/cordierite, Beryl, Aquamarine, QuartzPermission requiredPannapatti Gem-Hunt Village ContextRuby/cordierite, Beryl, Aquamarine, QuartzPermission required

Access and collecting rules

Tamil Nadu combines the Karur–Kangeyam gemstone belt, Salem–Namakkal ultramafic/corundum and magnesite geology, extensive quartz–feldspar pegmatites, northern alkaline/carbonatite complexes, coastal heavy-mineral sands and fossil-rich Ariyalur sedimentary geology. Mines, quarries, industrial mineral-sand operations and controlled prospects are retained as reference-only records unless public collecting access is independently established.

Indian Bureau of Mines — Tamil Nadu / state minor-mineral law index ↗

Dataset last reviewed: September 8, 2026. Coordinates are reference points; some mineral databases warn that locality coordinates may be generalized.

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