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Feldspar Group from
Penberthy Croft Mine, St Hilary, Cornwall, England, UK


Locality type:Mine
Classification
Species:'Feldspar Group' (not an IMA approved species)
Comments:A pink member of the Feldspar group is associated with Chlorite and Arsenopyrite in a Quartz matrix, and my be a mineralized part of the Rhyolite (Elvan) dyke or a lode structure close to it.
Confirmation
Validity:Confirmed
Confirmation Methods:Visually Identified
Associated Minerals Based on Photo Data:
Chlorite Group3 photos of Feldspar Group associated with Chlorite Group at this locality.
Quartz3 photos of Feldspar Group associated with Quartz at this locality.
Data
Mineral Data:Click here to view Feldspar Group data
Locality Data:Click here to view Penberthy Croft Mine, St Hilary, Cornwall, England, UK
Photo GalleryView Gallery (3 photos)
Data Identifiers
Mindat Occurrence Record ID:1294998
Long-form Identifier:1:3:1294998:8
GUID (UUID V4):98bcaf44-6380-4759-928c-7032cf1ebb12
Nearest other occurrences of Feldspar Group
1.0km (0.7 miles) Trevarthian Downs Mine (Trevarthen Mine), St Hilary, Cornwall, England, UK
4.2km (2.6 miles) Wheal Darlington (Bog Mine; incl. East Wheal Darlington), Marazion Marsh, Ludgvan, Cornwall, England, UK
5.8km (3.6 miles) Wheal Herland (Old Herland Mine; Manor Mine; North Wheal Herland), Rosewarne and Herland United Mines (Rosewarne and Herland Mine; incl. Wheal Fancy; Wheal Pleasure), Gwinear, Gwinear-Gwithian, Cornwall, England, UK
6.1km (3.8 miles) Lelant Consols, Trencrom, Ludgvan, Cornwall, England, UK
6.2km (3.8 miles) Wheal Mary, Wheal Sisters, Trencrom, Ludgvan, Cornwall, England, UK
6.3km (3.9 miles) Wheal Speed, Providence Mines, Carbis Bay, St Ives, Cornwall, England, UK
6.8km (4.2 miles) Wheal Reeth, Trencrom, Ludgvan, Cornwall, England, UK
7.2km (4.5 miles) Balnoon Mine (Vorvas Downs Mine; Warvas Downs Mine), Trewartha, St Ives, Cornwall, England, UK
8.8km (5.5 miles) St Ives Consols (incl. Wellesley Mine; Wheal Mary), St Ives, Cornwall, England, UK
9.2km (5.7 miles) Wheal Union (Wheal Wens; Wheal Winze), Towednack, Cornwall, England, UK
References
Reference Search (possible matching items)
Catalog/List
MINERALS Ho U available. NEW STOCK Devon and Cornwall pages 8 S 3 : ALLOPHANE, ARTHURITE, pure CHALCOCITE...pinkish fine grained mass in Calcite.(Dark Star Mine,Ravalli County, Montana USA) 1 x H £2.50 1x1 £4...and Be Mica white cleavages in Muscovite. (Harding Mine,Taos County, New Mexico) 1x1 £3.50 1x2 £7 097 CHLOANTHITE...MINERAL !! dark red micro's on matrix. (Getchell Mine,Humboldt Co . Nevada USA) 5mm £4 151 LEUCOSPHENITE...fairly sparse, green crusts on matrix. (San Miguel Mine Moctezuma Mexico) 1cm piece £ 5 5mm £3 WITH U
Journal (issue)
UK TS C 2 COVER. Emerald-green torbemite crystals to 9 mm across, from South Wheal Basset, lllogan...lllogan, Cornwall. Caerhays Miniature Collection No. 945. EDITORIAL The UK Journal of Mines a11d Minerals...advertising. FRONTISPIECE 3 Fluorite from Frazer's Hush Mine 4 THE SUSSEX MINERAL AND LAPIDARY SOCIE1Y EDITOR...RASPITE, STOLZITE AND PHILIPSBORNITE FROM CLIGGA MINE, CORNWALL David Green • Andrew Tindle 33 THE LEVERS...Press, Dorchester, Dorset, DT11HD ADVERTISEMENTS UK Journal of Mines & Mincr.ils No. 34 -1- EDITORIAL
Book
PO Box 315. Harpenden. Hertfordshire AL5 2ZD. England Telephone: +44 (0)1582 762413 Fax: +44 (0)870 055.............................. 529 G: gadolinite group to gyrolite ......................... 226 X: xanthiosite...the production of e0pper. the mining areas of Cornwall and Devon became important producers of b th tin... I made it a stipulation that e:ich en~ in rn:, ·st ,, ,u.d be fully referenced. After eight years the...Oxford University Museum of Natural History; Royal Cornwall Museum, Truro; Sedgwick Museum, University of
Catalog/List
CATALOGUE Byways, 20 Burstead Close, Cobham, Surrey, England KTll 2NL Phone 01932 862340 EMAIL . richard.tayler@minerals...massive with minor Celsian and Bementite from Benallt Mine, Lleyn, Wales, (Recently tested by XRD) lxl £4 lx2...£15 £6 88 ADAMITE Ojuela Mine, Mapimi, Mexico 1036 ALSTONITE Fallowfield Mine, Northumberland Colourless...River Quebec, Can 12 ALUMINITE Newhaven Sussex, England Rich fibrous pale grey-brown mass. Pure hard white...x2 £ 1.50 2x2 £3 Al SO/4 767 ■ AJOITE Christmas Mine, Gila County, Arizona USA 14 ALUMINITE Railway cutting
Journal (volume)
K. A. Dyer, Hoddlesden, Darwen, U.K. N.J. Elton, St Austell, U.K. I.R. Plimer, Kensington Gardens, S...non-member subscription rates for this volume are: UK £13 (including P&P) and Overseas £15 (including P&P)...Granite Company’s quarry at Halvosso, Longdowns, Cornwall. Jim Knight Collection; collected by Richard Barstow...photo David Green. BACK COVER: The appearance of a group of cream to light brown calcite crystals in various...LUV (middle) and SUV (bottom). East Face, Croft Quarry, Croft, Leics. Frank Ince specimen and photo (FI-1485;
Catalog/List
No. Byways, 20 Burstcad Close, Cobham, Surrey, England KTll 2NL EMAIL 2007 104 Phone 01932 862340 ...orange-red masses with darker Hornblende lxl £1 lx2 £2 Feldspar lxl £2 lx2 £3 BaS0/4 --- ---------------------------...semi-vitreous mass lxl £I.SO lx2 £3 2x2 £4.50 Feldspar Ix2 £4 2x2 £8 2x3 £ 12 3x4 £25 Be Al SiO · - -----...----·-·- ---- ·- -- 1129 ALMANDINE Brastad iron Mine near Arendal ,Norway 87 ■ BERYL Evje area . South...pale pink crystalline mass with some micros on Feldspar. lxl £3 lx2 £5 2x2 £12 Al Mn SiO ½" £4 lxl £8
Catalog/List
I Byways, 20 Burstead Close, Cobham, Surrey, England KTll 2NL Phone 01932 862340 EMAIL richard.tayler@minerals...£10 2x2 £15 Ix! £3 lx2 £6 I · 88 ADAMITE Ojuela Mine, Mapimi, Mexico Colourless to yellow small crystals...£10 2x3 £15 Na Ca SiO F 7fJ 7 ■ AJOITE Christmas Mine, Gila County, Arizona USA Blue veinlets in matrix...crystals in crystalline feldspar with minor fluorite. X 20 needed 1.5cm £4 no/2 feldspar 37 ANCYLITE Ce Dark...Dark Star Mine,Ravalli County, Montana U.S.A Rich pinkish fine grained mass in calcite .CeSr CO/3 Ix½
Catalog/List
pinkish fine grained mass in Calcite.(Dark Star Mine,Ravalli County, Montana USA) 1 x 14 £2.50 1x1 £4...guite rich black masses in matrix (Union Carbide Mine, Wilson Springs Garland County, Arkansas USA) 1x1...fairly sparse, green crusts on matrix. (San Miguel Mine Moctezuma Mexico) 1cm piece £ 5 5mm £3 WITH UNUSUAL...CO/3 0 Quite rich yellow crusts on matrix. (Outpost Mine, San Domingo Wash Maricopa County Arizona) Ixliins...MINERAL !I dark red micro's on matrix. (Getchell Mine,Humboldt Co . Nevada USA) 5mm £4 up to 1.5cm £7
Catalog/List
fcATALOGUE Byways, 20 Burstead Close, Cobham, Surrey, England KTll 2NL EMAIL No 96 2005\ Phone 01932 862340...South Larvik near CITE 13ratthagcn, ANAL 1098 Ojucla Mine, Mapimi, Mexico ADAMITE 88 Unusual rich yellow vitreous...ALABANDffE 15 Black micro crystals in cryslalline feldspar with minor 0uorite. X 2 0 needed Pure black-brown...cleavage Ti0/2 Mn S 1.5cm£4 5mm£2 ANATASE Virtuous Lady mine,Devon 26 ALBITE Kragcro Norway 6 single dark blue...orange-red masses with darker Hornblende Ti0/2 Ix! £4 feldspar Ix2£ 1.20 Ix I 50p 68 2 963 AI.BITE Maine USA
Catalog/List
RICHARD ’ BYWAYS, , COBHAM ENGLAND MINERALS T AY L E R C L 0 00 E 2 0 B U R S T E A D P h one SURREY...UO PO/4 slightly radioactive. (Old Gunislake Mine Cornwall) a) green 3mm area on ropk, £3 ( b) IxhaJ f...Phlogopite Mica. (Possibly slightly radioactive)(Palabora Mine,S.Africa lxl £5 1x2 £10 WITH UNUSUAL ELEMENTS...sections in matrix with Eudialyte.Rare not Rich (Umba Mine,Lovozero Massif,Kola Russia) lxl £4 1x2 £7.50 239...silvery areas in matrix with Tellurite. (La Bambolla Mine Moctezuma, Sonora Mexico) lxl £10 14 x 54 ins £5
Catalog/List
_1_0_0_ Byways, 20 Burstead Close, Cobham, Surrey, England KTll 2NL EMAIL ·_-2_0_0_6__, -· Phone 01932...Lochinver, Scotland 12 ALUMINITE Newhaven Sussex, England / MAGNESIOHORNBLENDE, dark green fibrous mass....___ 2x2£3 ___ - -----~ - ~014_ _ 88 ADAMITE Ojuela Mine, Mapimi, Mexico 69 ALUMOHYDROCALCITE South Bay,...- - --··---- - - - - - · . 767 AJOITE Christmas Mine, Gila County, Arizona USA 17 ANAL CITE Talisker...Quarry,Comwall Black micro crystals in crystalline feldspar with minor fluorite. X 20 needed Rich orange-red
Catalog/List
OHCI ALABANDITE Mn S ALAMOSITE Pb SiO/3 ALBITE Feldspar ALLANITE Ce Ce Ca Y Al Fe SiO ALLANITE Ce ♦ ...ANDRADITE garnet group ♦ ANGLES ITE Pb SO/4 ANHYDIUTE Ca SO/4 AN KERITE-KUTNAIIORITE Dolom ite group ANN ITE Mica...Mica AN ORTHITE Fe ldspar ANORTHOCLASE Felspar Group ANTHOPH YLLITE Amphibole 2cm £8 3cm £ 15 Near... x i £5 Rich wh ite crusts on matrix. Rawhide Mine, Moh ave County, ½ x ½ Arizona, U.S.A £3 Kragero...SIZES SS Chee rful , 18 miles NNW of St I cm £6 Ives. Cornwall. England No location details !cm £4 Colo
Catalog/List
about 2 or 3 mmon calcite. 'l'ype & only location.(St Hilaire, Quebec) 1 x ½ to lxl f5.50 103 CH~RCHITE...crystals on dar~ matrix. (not radioactive) (Leonie Mine, huerbach, Oberpfal Genany) Sto 10mmf3 l/2in;; ES...Silicate pinkish massiv~ with black Allanite (Bastnas Mine, Riddarhytt2n Vastm~~l2nd,Sw2deri) Cu/2 Se 039...(Ti Nb 0 rich black nasses in matrix (Karnasurt Mine, Revda, Kola Peninsula, Russia) lxl E2.50 lx2 ins...PO/~ • yellowish plates on mauvEUssingit~ (UmDa Mine, Reuda, Kola Peninsula • Russia) (6a pure plate
Journal (volume)
K. A. Dyer, Hoddleston, Darwin, U.K. N .J. Elton, St Austell, u.K. A.D. Hart NHM, London, u.K. RA. Howie...2007 PAPERS Zoned oxidation deposits in Tynebottom Mine, Garrigil1, Cumbria Trevo r F. Bridges and David...Copper·bearing silica gel from the walls of the Tankardstown mine, Co. Waterford, Treland Stephen Moreton 10-17 ...Ireland Norman R. Moles 40-46 Buttgenbachite from Cornwall: a single-crystal X-ray study Peter Leverett,...and 1. Ike Wilson 52-54 Powellite from Benallt mine, Lleyn Peninsula, Gwynedd: a first Welsh occurrence
Catalog/List
COBlIAM 0 7 ) 1 '1411-.A[ S l . ! 1 1 . 1 1 Y s . ENGLAND 0 9 3 2 86 2 3 4 0 ,1 1" rm orEh5i1SJ1l,:;ttt7üi...Number 5 9 001'ACTINOLITE Amphibole Group. 002AEGIRINE Pyroxene Group 034AEGIRINE rich black fine Dark...section 1/2 ins t o l i n s long I n pale Felspar St Hilaire, Quebec Canada 1x2 i n s 60p 2 x 2 ins £1...crystalline mass with Fluorescent (LW) areas o f Sodalite (St Hilaire, Quebec, Canada) lx1 £1 i n s 1 x 2 ins £2...Yakutia, Russia) 5mm£1.80 l c m £3 007 ALBITE . Feldspar Group. grey crystalline masses showing areas o f
Journal (issue)
on p. 79 Articles Native gold from the Jamestown mine, Tuolumne County, California......................history of phosgenite and matlockite from Matlock, England ..................................... 39 by P....collectors interested in visiting the Blanchard mine or other mines in the Hansonburg mining district...collector was part of a group that had signed in at Bingham for entry to the Blanchard mine area for surface...strictly prohibited due to the hazardous nature of the mine workings, and visitors are required to acknowledge
Catalog/List
fluorescent ;�inerals section. The oain int.E-n•st is t.he really lC...the wreck of S3 Cheerful. 14 miles NNW of St Ives. Cornwall. 2nd world location £6 · 029 BERTRANDITE...Rich grey silvery platy mass in matrix (San Jose Mine,Oruro, Bolivia) 1cm t4 Very rich 2cm piece £10 ...sections in maliix with Eudialyte.Rare not Rich (Umba Mine,Lovozero Massif,Kola Russia) lxl £4 lx2 £7.50 317...'rELLURIUM Rich silvery vein in matrix. (La eambolla Mine Moctezuma Sonora Mexico) 1 x half ins £10 flakes
Book
On a spectacular find of crocoite in the Adelaide mine, Dundas, Tasmania (by A. H. Chapman) 3:111-113 ADOLFSSON...from Mont St. Hilaire, Quebec 2: 141-142 AJO Famous mineral localities: the New Cornelia mine, Ajo, Arizona...ALLEN, GEORGE B. --and W. Hunt: The Tonopah-Belmont mine, Maricopa County, Arizona 19:139-144 ALLGOOD, GENNE...Allgood, C. Williams: Ramsdellite from the Mistake mine [Arizona] 14:333-335 ALLGOOD, ROBERT W. -with G...the Mistake mine [Arizona] 14:333-335 ALMA Famous mineral localities: the Home Sweet Home mine, [near Alma
Journal (volume)
information: contents Issue 1 MINERALS '• Pyrite PY UK and Ireland: 0870 890 2730 Australia: (03) 9872 4000...265 4304 • Or visit the De Agostini website at: UK: AUS: SA: NZ: Rose quartz RO Ruby RU www.deagostini...deagostini.co.nz Missed a copy? Ring Customer Services UK: 0870 870 2575 Australia: (03) 9872 4000 New Zealand:...Earth, Editorial and Design by T he Brown Reference Group pie ISBN O 7489 7935 2 NO i 07 04 18 Printed in...Precious and semi-precious stones © 2007 De Agostini UK Ltd, 1-2 samples supplied with this issue This
Book (edition)
Linopolis, Brazil, H Page 13: Gold, 35 mm.Eagle's est Mine, California, G Publi!>hed by Grdllit.u.o. Stefanikova43...to the chemical formula, allegiance to a mineral group, symmetry and crystal structure as well as the strongest...chemical formula, structure (crystal system, space group, and unit cell dimensions), and at least some other...site occupancy. The Sb members of the tennantite group (2.G) will serve as a good example: tetrahedrite...registered in this book (e.g. in the amphibole group). For more detailed information see "Dana's System
Book (edition)
extensively rewritten by the book’s distinguished group of authors in the light of new research and important...Morocco; (center, left) wulfenite, San Francisco mine, Sonora, Mexico; (center) ameihyst, Veracruz, Mexico;...rnodochrosite, N’Chwaning mine, South Africa; (lower left, center) wulfenite, Red Cloud mine, Arizona; (lower...Chapman & Hall 2-6 Boundary Row London SE! 8HN, England Thomas Nelson Australia 102 Dodds Street South...relvvagigld .xteliliey? santa rowan leks ) Get « ryi St pewory sine toting bee eoetiine wll deatial wl bxyolovab
Book (edition)
extensively rewritten by the book's distinguished group of authors in the light of new research and important...Morocco; (center, left) wulfen ite San Francisco mine, Sonora, Mexico; (center) amethyst, Veracruz, Mexico;...Mountains, Utah; (lower le ft) rhodochrosite, N'Chwaning mine, Sou th A frica; {lower left, center) wulfenite...Chapman & Hall 2-6 Boundary Row London SEI 8HN, England Thomas Nelson Australia 102 Dodds Street South...Pfeifer JY Joel Yancy JZ Julius Z weibel KE Kent England LC Lawrence Conklin LH Laszlo Horvath LM Luiz Menezes
Book (edition)
Typesetting Services Ltd, Wallington, Surrey, England. Contents Preface Historical Perspective Acknowledgments...compelation of the American Geological Institute, 4220 King St., Alexandria, VA, 22302-1502. However, without the...of Earth Sciences, Cambridge Univ., Cambridge, England. Sharon Cisneros: Minerological Research Co., San...of Mineralogy, Natural History Museum, London, England. Rock H. Currier: Jewel Tunnel Imports, Baldwin...Species containing more than one anion or anion group may be assigned to a separate class or may be assigned
Book
Springfield show ( 1995: 582). Madawaska [Faraday] mine near Bow Lake, Hastings County. Some of the world's...property of, the old Madawaska uranium mine (called the Faraday mine before 1964). The mineral assemblage...massive calcite. or, rarely, still attached to the feldspar/mica walls of the dike (www.davidkjoyceminerals...Cowgill, 1977). LATINAMERICA BRAZIL Jacupiranga mine, Sao Paulo. Among the crystallized minerals in the...Oblast. Alpine-type clefts in the famous Dodo quartz mine commonly contain ilmenite, occurring as lustrous
 
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