Lamplugh, G.W. 1903. The geology of the Isle of Man. London: HMSO. Memoirs of the Geological Survey United Kingdom. Grid references added 2025. They should be regarded as approximate.
Appendix 1 List of minerals known to occur in the Isle of Man
(The Lode-Minerals are mainly on the authority of Sir W. W. Smyth's List, in Trans. Isle of Man Nat. Hist. and Antiq. Soc., vol i., pp. 143–147.)
Localities marked (s) are from Sir W.W. Smyth's list)
Localities and Remarks.
| Locality and remarks | ||
| Name | Lode-minerals | Rock-forming minerals |
| Actinolite | — | As alteration-product in dyke-rocks (p. 308). |
| Albite | — | In some igneous rocks. |
| Analcime | — | As decomposition-product in basalts. |
| Anglesite | Glenchass Mine (s)<ref>Localities marked (s) are from Sir W. W. Smyth's list.</ref> | — |
| Anthracite | Laxey Mine (see p. 520) | — |
| Antimonite | Niarbyl Mine, (p. 546) | — |
| Apatite | In a vein near Foxdale Granite (Kendall) | In small crystals in many igneous rocks. |
| Atacamite | North Bradda, old workings (s) | — |
| Augite | — | Common in intrusive rocks. |
| Barytes | Foxdale; rare at Laxey (s); North Laxey | — |
| Biotite | — | Common in igneous rocks, and detrital in slates. |
| Calamine | Laxey (rare) (s) | — |
| Calcite | Common iu lodes | Chief constituent of limestones and alteration-product in basic igneous rocks, etc. |
| Cerussite | Glenchass, Rushen, and Bradda Mines (s). | — |
| Chalcanthite | Old workings, Laxey, Bradda (s) | — |
| Chalcedony | Cornelly Mine: as Agate in Bulwark Lode, North Bradda (s) | As pebbles, in Peel Sandstone and in Glacial deposits. |
| Chalcopyrites | Laxey: Foxdale (rare); Maughold Head; Langness (s), and other places | — |
| Chalybite (Siderite) | Foxdale, Cornelly, and other mines | As decomposition-product in some igneous rocks. |
| Chlorite | Brachia and Rushen Mines (s), and common in quartz veins | Common as alteration-product. |
| Chloritoid (Ottrelite) | — | In altered elvan on Greeba Mountain (p. 318) and probably in other altered rocks. |
| Cuprite | Bradda Mine (s) | — |
| Dialogite | Snaefell Mine (s) | — |
| Dolomite | Common in lodes | In Carboniferous Limestone and sparingly in decomposed basic rocks. |
| Epidote | — | Common as alteration-product especially in basic dykes |
| Fahlerz (see Tetrahedrite) | ||
| Felspar (see Orthoclase, Plagioclase etc.) | ||
| Fluorspar | Old Foxdale (s) | — |
| Galena | In many lodes: more or less argentiferous | — |
| Garnet | — | As alteration product; and detrital in grits. |
| Gold ? | see p. 649 | — |
| Graphite | Snaefell Lode (impure) (a). Beary (p. 550). | Graphitic slate in several localites: see p. 134. |
| Gypsum | Many veins in Triassic and Carboniferous rocks in deep borings on The Ayre. | — |
| Hematite | Maughold Mines | — |
| Hornblende | Cornelly lode (s) | Common in intrusive rocks (see p. 301). |
| Ilmenite | — | Common in many rocks. |
| Iron-pyrites | Common in lodes | Common in many rocks. |
| Kupfernickel | Glenchass (s) | — |
| Labradorite | — | In basic igneous rocks. |
| Leucoxene | — | As decomposition-product in igneous and metamorphic rocks. |
| Limonite | Maughold Mines (s) | -- |
| Magnetite | — | Common in igneous rocks. |
| Malachite | Bradda Lode (s) | — |
| Malacolite | — | Variety of augite common in basic dykes (p. 301). |
| Manganese spar (see Dialogite) | ||
| Marcasite | Laxey, Bradda (s), etc. | — |
| Melaconite | Laxey and Bradda Mines (a) | — |
| Melanterite | Old workings, Laxey, etc. (a) | — |
| Mica (see Muscovite, Biotite,etc.) | ||
| Microcline | — | In Dhoon Granite elvans and in granite at Cornelly Mine. |
| Millerite | Trial-shaft at Rhenas (s) | — |
| Molybdenite | On joints in Dhoon Granite | — |
| Muscovite | In many quartz veins (p. 320) | Common rock-constituent. |
| Nickel-ores (see Kupfernickel and Millerite) | ||
| Ochre | Rushen and Bradda (s) | — |
| Oligoclase | — | Common in some igneous rocks. |
| Olivine | — | In basaltic dykes. |
| Opal | Var. semi-opal; Cornelly Mine (s) | — |
| Orthoclase | — | Common in igneous rocks. |
| Picot ite | — | In Carboniferous diabase (Hobson). |
| Plumbago (see Graphite) | ||
| Plumosite | Foxdale Mine (p. 503) | — |
| Pyrites (see Iron-pyrites and Chalcopyrites | ||
| Pyrolusite | Upper part of several lead- veins (s) | — |
| Pyromorphite | Rushen and Laxey Mines (s) - | — |
| Pyrrhotite (Pyrrhotine) | Snaefell; Laxey (rare) (s) - | — |
| Quartz | Chief constituent of veins in slates | Common rock-constituent. |
| Riebeckite | — | In Ailsa-Craig boulders in the drift. |
| Rutile | — | Common in altered slates and in some igneous rocks. |
| Sericite | — | Common as alteration-product in sheared rocks. |
| Serpentine | — | As decomposition — product after Olivine. |
| Silver-ore (see Fahlerz and Plumosite) | Is. | |
| 8phi-tie | — | As alteration - product in igneous and metamorphic rocks. |
| Staurolite | — | As slteration-product at margin of Dhoon granite; rare. (G. Barrow.) |
| Steatite | Foxdale and Laxey Mines (a) | — |
| Stibnite (see Antimonite) | ||
| Tetrahedrite | Foxdale Mines (s) | — |
| Tourmaline | In quartz-veins near granite (see p. 143). | Common as alteration-product in igneous and metamorphic rocks, etc. |
| Tremolite | — | Alteration-product in some dykes. |
| Uralite | — | Variety of hornblende, common in basic dykes (see p. 301). |
| Zine-blende (Sphalerite) | In many lodes | — |
| Zircon | — | Small grains in grits; also in igneous rocks. |
| Zoisite | — | As alteration-product in igneous rocks. |