 | | Journal (article/letter/editorial) |
| pegmatites within the Tysfjord granite, northern Norway Tomas Husdal Introduction The Tysfjord granite...including well-known collecting sites like Hundholmen, Drag and Tennvatn. Large, well-formed crystals make thalenite-fv)...from the pegmatites makes this one of the areas in Norway richest in different species. This work is presenting...from Fauske to Efjorden in the northern part of Nordland county. It is a foliated pale grey to pale red...Hundholmen (1906) and in different pegmatites in the Drag area (1907), and continued in these and additional |
 | | Journal (article/letter/editorial) |
| manganese minerals are pyrolusite, braunite, and cryptomelane. The ore bodies are located on, or near the...with early hydrothermal braunite–pyrolusite–cryptomelane–todorokite–hausmannite, overprinted by late...quartz crystals intergrown with pyrolusite and cryptomelane indicate that primary and pseudosecondary inclusions...age was obtained by K–Ar geochronology from cryptomelane at the mine (Dammer et al., 1994). This dating...Typical high-grade manganese ore comprising cryptomelane and pyrolusite. e) Rare quartz crystals in vughs |
 | | Journal (article/letter/editorial) |
| ) ] , one of the cryptomelane-group minerals [hollandite ( B a M n 0 ) , cryptomelane (KMn O, ), coronadite...marks that have been misidentified as fossils. Some drag marks and other kinds of tool marks originate in...distinguished from typical, irregu larly shaped load casts. Drag marks, prod casts, and skip casts—which are collec...bounces across the surface of a sediment. Typical drag marks consist of grooves, plus or minus striations |
 | | Report (issue) |
| west;-B, Crude ore from Sherman Valley. 9. A. Cryptomelane from ore bed of Sherman Valley open cut; B,... 11. A, Cryptomelane and limonite replacing clay;-B, Limonite replacing veined cryptomelane. 12. A,...Botryoidal cryptomelane replacing limonite; B, Selective replacement of colloform banded cryptomelane by li...replacing rust-colored limonite; B, Vein of cryptomelane cutting dark limonite. 14. A and B Stages of...Colloform banded cryptomelane replaced by limonite vein; B, Colloform banded texture of cryptomelane. 16. A, Colloform |
 | | Journal (article/letter/editorial) |
| pegmatite and schist/amphibolite meet; 5) evidence of drag folding of the schist, in particular, at the contact...Colomite Columbite (see Ferrocotumbite) Cookeite Cryptomelane Cyrilovite (problematical, compare wardite)...The nonphosphate phases include birnessite, cryptomelane, and gypsum. The Solution Of An Unexpected Problem |
 | | Journal (article/letter/editorial) |
| orogeny, resulting in small-scale isoclinal and drag folding, and in the development of shear zones parallel...microprobe analysis as K-and C a - b e a r i n g 'cryptomelane' (see section Manganese oxides and hydroxides)...silicate minerals. Pyrolusite generally postdates cryptomelane. The compositions of white micas range from...Supergene minerals Cryptomelane Pyrolusite Roman6chite Goethite Lepidocrocite Cryptomelane Pyrolusite Goethite...matter (dark grey), surrounded by secondary cryptomelane (grey) and quartz (black). Field of view = 1 |
 | | Catalog/List |
| distribution of tiny brown grains in YTTROFLUOftlTE (Drag Norway) 1x1 £2 1x2 £4 298 BISMUTITE Bi CO/3 0 Quite...Si/2 0/7 rare Scandium mineral (Tuftane Iveland Norway) grey to colourless crystal section in Felspar...Albite with Ilmenite and or Magnetite. (Tuftane Evje Norway) lxl to lx 54 only 1 crystal £4 226 LOPARITE Ce...obvious grey coatings on Schist. (Bleikvassli, Nordland Norway) lxl £3.00 196 MIMETITE Pb As0/4 Cl good all...crystals about 2 to 5 mm on matrix. Some with (Evje Norway) 1x2 £1 lxl ins 50p NEPHELINE micros. (Midelt Morocco) |
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| UONITt PuregTCC11clcavagc Landsvctkquarry,Evjc,Norway lxl SOp fdsplrfVllp Puregrcycleavablc massive Keystone...Yorkshire Richdistributionoftiny browngrainsin Drag Norway YTTROFLUORITE alsoblad::Tourmaline Richred brownmassive...2x2 RichycllowmasseswithPhlogopitc Odcgradcnsvcrk Norway - u.so Goodgreenishycllowmicrocrystalsin cavi1ies... HuaronMine,Ccrrode Pasco Peru Sclasvøtn,Fianc,Norway lxl {1.25 lx2 !3 Lengenbach Quany,Binn Vall~...(ny IDPIiemam Ocllbcchlcrysrals Llndsvert,Evjc,Norway ......... 011 ink Paielkabp:y-ive. Stn1111purple |
 | | Catalog/List |
| distribution of tiny brown grains in YTTROFLUORITE (Drag Norway) lx2ins £3 2x2 £6 218 BISMUTHINITE Bismuth Sulphide...Albite with Ilmenite and or Magnetite. (Tuftane Evje Norway) lxl to lx 54 only 1 crystal £4 229 MELANOCERITE...Si/2 0/7 rare Scandium mineral (Tuftane Iveland Norway) grey to colourless crystal section in Felspar...obvious grey coatings on Schist. (Bleikvassli, Nordland Norway) 1x1 £3.00 . 269 MENDIPITE Pb/3 Cl/2 0/2 :...attractive Eclogite rock from (Nordfjord,.West Norway) • 1x2 £1.30 2x2 £2.70 • 2x4 £6 112 CORUNDUM Al/2 |
 | | Report (volume) |
| ____________________________________ 221 51. A, Drag line used in stripping overburden from the outcrop...metallurgical purposes. The ore consists of fine-grained cryptomelane and pyrolusite, and contains from 4.5 to 50..."fines." It consists chiefly of finegrained cryptomelane and pyrolusite. Its average manganese content...manganese oxide was noted in another sample. The cryptomelane is mostly fine-grained and incoherent, although...minute crystals, which form coatings on massive cryptomelane and also make up aggregates of considerable |
 | Geyne, A. R., Fries, Carl, Segerstrom, Kenneth, Black, R. F., Wilson, I. F., Johnson, Paul Willard (1970) The Pachuca-Real Del Monte Mining District. Rocks & Minerals, 45 (1) 3-7 doi:10.1080/00357529.1970.11763776 | Journal (article/letter/editorial) |
| Cu Coquimbite Fe 2 (S04) so9H20 CoveUite CuS Cryptomelane KMnllMnlvs010oH20(?) Dickite A4(OH) 12 (SiPI0)...treatment The early ore was ground in arrastres (drag-mills), then the ore was drained of water in flagstone |
 | | Book |
| novaculite quarry in Pulaski County has some nice cryptomelane and pyrolusite after manganite. So you see this...adularia, siderite, ankerite, cookeite, dickite, cryptomelane and goethite occur in quartz crystals. Chlorite...one of the manganese oxide minerals, probably cryptomelane or possibly minute particles of shale or both... planerite, variscite, turquoise, goethite, cryptomelane, brookite, chlorite, pyrite and other sulfides...that produced a small amount of manganese ore (cryptomelane) during the 1950s. The only access by road is |
 | | Catalog/List |
| Albite with Ilmenite and or Magnetite. (Tuftane Evje Norway) 1x1 to lx K only 1 crystal £4 242 KOLBECKITE Scandium...obvious grey coatings on Schist. (Bleikvassli, Nordland Norway) lxl £3.00 I I 300 MURDOCHITE Pb Cu 0 (Cl...AMAZONITE felspar group. pure green cleavages. (Evje Norway) 1x2 £1 1x1 ins 50p 109 CORDIERITE Mg Al Silicate...variety . (Cu traces) (Ovestebo,Sauland Telemark Norway) pure 5mm £3 Rich in quartz about 1cm area £6 307...in and on Olivine.(Almklovdalen More og Romsdal,Norway) lx2ins £3 2x2ins £6 460 SPODUMENE variety HIDDENITE |
 | | Report (issue) |
| mine-----------------------------------------------19. Drag-folded cherty thin-bedded Trommald formation showing...of greenish-gray and the development of intricate drag folding and slaty brown quartzite form a prominent...synclinal fold, probably considerably complicated by drag folding. It cannot be assumed that the 3,000 feet...underlain by Mahnomen formation, it seems that, though drag folded, the total thickness of the formation may...in many specimens, manganite, pyrolusite, and cryptomelane. No psilomelane was found in any of the samples |
 | | Report (volume) |
| trends toward the northeast; the other includes drag folds, and elongated minerals and pebbles, and plunges...pattern, together with the occurrence of numerous drag folds indicating anticlinal axes to the west, is...of cleavage are commonly present in schist. Small drag folds and other linear structural features are widespread...and the position of major fold axes by means of drag folds, and similar repetition of formations in adjacent...not seen definite graded bedding). · 2. Nature of drag folds. 3. Apparent dip of the Candler formation |
 | | Journal (article/letter/editorial) |
| columnar structures are formed (Valarelli, 1967). Cryptomelane (KMn8O16) is the main ore mineral of the deposit...analysis of four selected samples of massive cryptomelane showed that manganese oxides constituted more...lithiophorite [Li( Al,Fe )MnO3*H2O], which is similar to cryptomelane, was identified in some samples (Marvin 1956...2A), which have bottom and walls covered with cryptomelane with botryoidal or mammillary textures, and...layering might be seen in the block. (C) Mammillary cryptomelane, deposited in a solution cavity of the ore. |
 | | Catalog/List |
| PbSiO/3 County. Arizona. U.S.A 2x2 1x2 sop Kragero Norway Rich orange-red masses with darker 6 ALBITE £L...paper available. ___ _ _ _ -- - - ·- ·- Larvik, Norway ·-· ·- . __ .. . ----· - ·- - ··- ·-- -- · · Rich...pun: pale brown cleavages. Ula, near Larvik, South Norway Ix I ins .50 I x2 168 ANORTHOCLASE .£1.JQ .. ....BASTNAESITE Rich distribution of tiny brown grains in Drag Norway Ix½ £3 CeLaCO/3 _____ _J.TTROFLUORITEalsoblackTourmalinc...micro crystals in cavirties Saga Quarry, Tvedalen, Norway Ix½ £3 59 BOEHl\lITE AIO OH inNatrolite _ - - - |
 | | Catalog/List |
| £5___ Rich orange-red masses with darker Kragero Norway 1x2 50p 2x2 ALBITE 6 Hornblende____________________...green cleavage AMAZONITE Landsverk quarry, Evje, Norway Ixl 50p lx2£l 11 felspar group____________ Attractive...Mica__________ paper available.__________________ Larvik, Norway ___ 2x3 £9 2x2 £6 1x1 £1.50 1x2 £3 18 ANORTHITE...pure pale brown cleavages. Ula, near Larvik, South Norway Ixl ins.50 1x2 £1.20 Felspar Group 2x2 £2 27 ANTHOPHYLLITE...England Near White Nab. Scarborough. Yorkshire Drag Norway 2X3 £7.50 1x1 £2.50 1 x 1 cm £1.80__ 1x2 £1 |
 | | Catalog/List |
| orange-red masses with darker ALBITE lx2 50p Kragero Norway 2x2 Feldspar Hornblende £1.20 -ALLANITE Cc pure...Froland, Arcndal, lx2 £6 2x2 £12 Cc Ca Y Al Fe SiO Norway ALLOPHANE grey bleby small botryo i dal with poss...Tvedalen near Mica paper avail'!�_____ _ ___Larv ik, Norway __ _ ___ _ Loch Scrida i n Mull Scotland 18 ANORTHITE...pure pale brown cleavages. Ula. near Larvik. South Norway _�clspar Group Kavcltorp M i ne Sweden 27 ANTHOPHYLLITE...for this locat io'!:_ _ __. _ _ _ __ _ Larvik_ Norway --K.Na - ---Fe- - ----------- - -- ----good coverage |
 | | Catalog/List |
| rich black masses samewith felspar.(Buer Vesteroya Norway) lxl El.BO lx2 E3.60 006 ALBITE rich orange red...Omphacite.Anattractive Eclogite rock.(West Coast of Norway) lx2 El.20 2x2 f2.50 2x4 E5.00 Oll ALTHAUSITE...solid cleavage in Clinochlore (Overntjern,Modum Norway) lxl E2.70 lx2 E4.60 012 ALUMINITEpure whit~ sphere...distribution of browngrains in grey YTTROFLUORITE.{Drag Norway) lx2 E2.70 2x2 ES.SO 048 BAUX1'rE rich red b101...black masses minor matrix. (Brandsnuten,Botnedal Norway) lxlins fJ lx2 f6 069 BREUNNERITE (FerroanHagnesite) |
 | | Report (issue) |
| ---_____ Planar structures _ Lineation_ _______ Drag folds _______ Structural deformation Mineral resources...___________________________________________ 26. Drag-folded manganiferous itabirite-________--_____-...Limpa fault. It probably resulted from westward drag of a block south of and adjacent to the Rio Piracicaba...Rio Piracicaba quadrangle. DRAG FOLDS Other minor structures are the drag folds that were produced as...slid over less competent beds during folding. The drag folds are prevalent in the muscovite-quartz schist |
 | | Journal (article/letter/editorial) |
| sited in the large central cation tunnel of the cryptomelane group structure (Vasconcelos et al., 1995)....430 ± 5 Ma for Bel-02. The argon retention of cryptomelane group minerals is excellent (Vasconcelos et...and quartzite units underwent brittle deformation. Drag folding, bedding plane slip, and transform and strikeslip...radiogenic, and nucleogenic argon release from cryptomelane during 40Ar/39Ar analysis: Geochimica et Cosmochimica |
 | | Catalog/List |
| orange red masses with darker Hornblende (Kragero Norway) 1x2 50p 2 x 2 £1.20 009 ALLANITE C e Y Fe S i...attractive Eclogite rock from (Nordfjord, West Norway) 1x2 £1.20 2 x 2 £2.50 2 x 4 £6 012 ALUMINITE...cleavage i n paler Clinochiore. (Overntjern, Modum, Norway) lx1 £2.70 1 x 2 £4.60 014ALURGITE variety of Muscovite...distribution of brown grains in grey YTTROFLUORITE (Drag Norway) 1x2 £3.00 2 x 2 £6.00 048 BAUXITE mixed A l...n cavities i n Natrolite (Saga Quarry,Tvedalen Norway) lx1 £2.60 056 BORACITE pale blue t o grey small |
 | | Report (volume) |
| _______________ 23. Pegmatite enclosed in minor drag fold of schist in roof of Carajau pegmatite-___... Scorza states that the main ore mineral is cryptomelane, a member of the psilomelane group. (See appendix...pure manganese dioxide predominantly alpha (cryptomelane) phase, quite well crystallized. Gamma phase...It seems probable that it is adsorbed in the cryptomelane. 6 Leinz, op. cit., pp. 219-220. 7 The report... In this specimen are much manganese oxide (cryptomelane) and iron oxide (hematite) derived from the |
 | | Report (edition) |
| locality Paris fluorite locality Sherman Valley cryptomelane locality Berks County Dyer quarry zeolite locality...manganese goethite, lepidocrocite, kaolinite, cryptomelane, pyrolusite, cacoxenite, beraunite Alpine veins...corundum 1 ite crandallite *cryptohal i te cryptomelane cuprite datol ite descloizite devi 1 1 ine...16. New BEDFORD COUNTY 35 SHERMAN VALLEY CRYPTOMELANE LOCALITY LOCATION Sherman Valley is located...radial clusters of yellow-orange microcrystals Cryptomelane: black lumps, some botryoidal, from side of |
