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St Just District, Cornwall, England, UK

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Location is approximate, estimate based on other nearby localities.
 
Latitude & Longitude (WGS84): 50° North , 5° West (est.)
Margin of Error:~17km
Other regions containing this locality:Devon and Cornwall metalliferous mining district, England, UK


This mining district includes the civil parishes (CPs) of Madron, Morvah, Sancreed, Sennen, St Buryan, St Just and St Levan.

For the present CP boundaries, see: http://mapping.cornwall.gov.uk/website/ccmap/ (in the 'Layers' tab on the left, select 'Government Boundaries', then click on 'Parishes').

Mineral List

Mineral list contains entries from the region specified including sub-localities

Actinolite

Aegirine

Albite

Allanite-(Ce)

Allophane

Almandine

Amphibole Supergroup

var: Byssolite

Andersonite

Andradite

var: Hydroandradite

Anthophyllite

Antimony

Antlerite

'Apatite'

'Apophyllite'

Aragonite

'Argentine'

Arsenic

Arsenogoyazite

Arsenopyrite

'Asbestos'

'var: Mountain Leather'

Asbolane

Atacamite

Augite

Autunite

Axinite-(Fe)

'Axinite Group'

Azurite

Baryte

Becquerelite

Beryl

'Biotite'

Bismite

Bismuth

Bismuthinite

'Bismuth Ochre'

Bismutite

Boltwoodite

Bornite

Botallackite (TL)

Brochantite

Brushite

Buttgenbachite

Calcite

Cancrinite

Cassiterite

var: Wood Tin

Cerussite

Chalcanthite

Chalcocite

Chalcomenite

Chalcophyllite

Chalcopyrite

var: Blister Copper

Chamosite

var: Thuringite

Chlorargyrite

'Chlorite Group'

Chrysocolla

Clinoatacamite

Clinoclase

Clinoptilolite-Ca

'Clinoptilolite-Ca-Heulandite-Ca Series'

Cobaltite

Coffinite

Compreignacite

Connellite

Copper

Cordierite

Cornubite

Cornwallite

Corundum

Covellite

Cumengeite

Cummingtonite

Cuprite

var: Chalcotrichite

var: Tile ore

Cuprosklodowskite

Cyanotrichite

Danalite

Devilline

Dewindtite

Diaspore

Digenite

Diopside

var: Diallage

Djurleite

Dolomite

Dravite

Epidote

Erythrite

'Feldspar Group'

Ferro-hornblende

'Ferro-sadanagaite'

Feruvite

Fluorapatite

var: Carbonate-rich Fluorapatite

Fluorite

Galena

'Garnet'

Goethite

Gold

Goslarite

Graphite

Grossular

var: Stannoan Grossular

Grunerite

Gypsum

var: Selenite

Hastingsite

Haüyne

Helvine

Hematite

var: Specularite

'Heulandite'

Heulandite-Ca

Heulandite-K

'Hornblende'

Jarosite

'Jasper'

Johannite

Kaolinite

Kasolite

'K Feldspar'

'var: Adularia'

Kröhnkite

Langite (TL)

Laumontite

Lavendulan

Lepidocrocite

Libethenite

'Limonite'

Liroconite

Magnetite

Malachite

Malayaite

Manganite

'Manganoan Calcite'

Marcasite

Melanterite

Mesolite

'Meta-autunite Group'

Metanováčekite

Metasaléeite

Metatorbernite

Metavoltine

Metazeunerite

'Mica Group'

Mixite

Muscovite

var: Gilbertite

var: Pig's Egg

Nantokite

Natrolite

Natron

Natrozippeite

Neotocite

Nepheline

Nosean

Nováčekite-I

Opal

var: Fire Opal

var: Isopyre

Orthoclase

Paratacamite

Pargasite

Pharmacosiderite

Phenakite

Pigotite

'Pinite'

Pitticite

Prehnite

Pseudomalachite

Pyrite

Pyrolusite

'Pyroxene Group'

Pyrrhotite

Quartz

var: Amethyst

var: Carnelian

var: Chalcedony

var: Citrine

var: Eisenkiesel

var: Ferruginous Quartz

var: Milky Quartz

var: Prase

var: Rock Crystal

var: Smoky Quartz

Rhodochrosite

Roquesite

Rutherfordine

Saléeite

Sanidine

Scheelite

Schorl

Schröckingerite

'Serpentine Subgroup'

'var: Bastite'

Siderite

var: Sphärosiderite

Silver

Skutterudite

Sphalerite

Spinel

Stannite

Stibnite

'Stilbite'

Stokesite (TL)

Talc

var: Steatite

Tennantite

Tenorite

Tetrahedrite

Titanite

Topaz

Torbernite

'Tourmaline'

'var: Achroite'

Tremolite

Triploidite

Trögerite

Tyuyamunite

'UM1995-//-CO:PbU'

'UM1995-CO-CaHREEEU'

Uraninite

var: Pitchblende

Uranophane

Uranopilite

'Uvite Series'

Vandenbrandeite

Vandendriesscheite

Vesuvianite

Vivianite

Volborthite

Waylandite

Wickmanite

Widenmannite

Wittichenite

'Wolframite'

Wölsendorfite

Woodwardite

Zeunerite

Zippeite


184 valid minerals. 3 (TL) - type locality of valid minerals.

Rock Types Recorded

Entries shown in red are rocks recorded for this region.

Note: this is a very new system on mindat.org and data is currently VERY limited. Please bear with us while we work towards adding this information!

Rock list contains entries from the region specified including sub-localities

Geochronology

Mineralization age: Phanerozoic : 290 ± 7 Ma to ~45 Ma

Important note: This table is based only on rock and mineral ages recorded below and is not necessarily a complete representation of the geochronology, but does give an indication of possible mineralization events relevant to this locality. As more age information is added this table may expand in the future. A break in the table simply indicates a lack of data entered here, not necessarily a break in the geologic sequence. Grey background entries are from different, related, localities.

Geologic TimeRocks, Minerals and Events
Phanerozoic
 Cenozoic
  Paleogene
   Eocene
ⓘ Pitchblende~45 MaCoronation Lode, Geevor Mine (North Levant Mine), Pendeen, St Just, St Just District, Cornwall, England, UK
ⓘ Coffinite~45 MaCoronation Lode, Geevor Mine (North Levant Mine), Pendeen, St Just, St Just District, Cornwall, England, UK
    
  
 Mesozoic
  Triassic
   Late Triassic
ⓘ K Feldspar (youngest age)212 ± 4 MaLevant Mine, Trewellard, St Just, St Just District, Cornwall, England, UK
ⓘ Uraninite (youngest age)223 ± 5 MaCoronation Lode, Geevor Mine (North Levant Mine), Pendeen, St Just, St Just District, Cornwall, England, UK
   Middle Triassic
ⓘ K Feldspar (oldest age)244 ± 4 MaHanging Wall Vein, Geevor Mine (North Levant Mine), Pendeen, St Just, St Just District, Cornwall, England, UK
    
  
 Paleozoic
  Permian
   Guadalupian
ⓘ Major polymetallic mineralization~270 MaCornwall, England, UK
   Cisuralian
ⓘ Porphyry dikes intruded (latest age)~275 MaCornwall, England, UK
ⓘ Greisen279 ± 4 MaLower Bostraze China Clay Pit, Tregeseal Valley, St Just, St Just District, Cornwall, England, UK
ⓘ Greisenization (latest age)~280 MaCornwall, England, UK
ⓘ Porphyry dikes intruded (earliest age)~280 MaCornwall, England, UK
ⓘ Formation of metallized pegmatites~285 MaCornwall, England, UK
ⓘ Greisenization (earliest age)~285 MaCornwall, England, UK
ⓘ Uraninite (oldest age)290 ± 7 MaCoronation Lode, Geevor Mine (North Levant Mine), Pendeen, St Just, St Just District, Cornwall, England, UK
ⓘ Emplacement of major plutons~295 MaCornwall, England, UK

Localities in this Region

UK

This page contains all mineral locality references listed on mindat.org. This does not claim to be a complete list. If you know of more minerals from this site, please register so you can add to our database. This locality information is for reference purposes only. You should never attempt to visit any sites listed in mindat.org without first ensuring that you have the permission of the land and/or mineral rights holders for access and that you are aware of all safety precautions necessary.

References

Sowerby, J. (1809) British mineralogy or coloured figures intended to elucidate the mineralogy of Great Britain. vol. 4, 53-54. (phenakite from "a mine in St Justs [sic]" listed both as "argilla electrica" and as "white tourmaline".)

Carne, J. (1822) On the Mineral Productions and the Geology of the Parish of St. Just. Transactions of the Royal Geological Society of Cornwall 2, 290-358.

Russell, A. (1920) On the occurrence of phenacite and scheelite at Wheal Cock, St. Just, Cornwall. Mineralogical Magazine, vol. 19, n° 88, 19-22. (referring to Sowerby 1809).

Kingsbury, A.W.G. and Hartley, J. (1956) Atacamite from Cumberland and Cornwall. Mineralogical Magazine, vol. 31, n° 235, 349-350.

Weiss, S. (1986) Die Grubenbezirke St.Just und St. Ives in Cornwall. Lapis 11 (5), 9-32 (in German).

Mineral and/or Locality  
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