Nr.	Description	Photo
M-192	Macfallite, Manganese Exploration, Copper Harbor, Keweenaw Co., Michigan, USA (type locality) Reddish-brown radiating aggregates ± orientite replacing calcite MM (10) Euro 1.50; TN (4) Euro 6.00
M-007	Magnesioferrite, Långban, Värmland, Sweden Black metallic xls and grains with yellow mimetite, litharge and hematite 7x10 cm Euro 18.00
M-183	Magnesioferrite/Hematite, Kopeysk, Chelyabinsk coal Basin, Ural, Russia Grey massive hematite with ballshaped aggregates containing black magnesioferrite crystals  in slag material ca. 3.5x5 cm (2) Euro 8.00
M-255	Magnesite, Gabbs, Nevada, USA Massive grey to white Min (1) Euro 1.50; SC (4) Euro 3.00
M-011	Magnesite, Quarry at Preg, Kraubath, Steiermarken, Austria Massive pure white specimens TN (1) Euro 2.00; A.5x8 cm (1) Euro 7.00; B. 7x8.5 cm (1) Euro 9.00
M-012	Magnesite, Midtvatnet, Selas, Vegarshei Commune, Aust-Agder, Norway Large grey rhomboeders with small mm-sized white calcite veinlets. Some large magnesite xls are intergrown with nice radiating actinolite TN Euro 4.50; SC Euro 9.00; HS (1) Euro 18.00 A. 6x6x7 cm Euro 22.50; B. 4x6x 9 cm Euro 25.00
M-213	Magnesite, 500 meters SE of El Marchal, Almeria, Spain White massive magnesitebreccia 5.5x9x11.5 cm (1) Euro 10.00
M-214	Magnesite, Paleologas, Yerakari-Chalkis, Euboea Island, Greece White massive from a 1.5 meter thick band 5x12 cm (1) Euro 6.00
M-215	Magnesite, concession Hagia Paraskewi, Chalkidike Peninsula, Saloniki, Greece White coliflowerform aggregate of Magnesite on masssive magnesite 5x8.5 cm (1) Euro 6.00 Massive white 5x9 cm (1) Euro 3.50
M-216	Magnesite, Lagondi Kakazas, Magnesite Mines of W.J.A. Huyzer, Yerakari-Chalkis, Euboea Island, Greece Magnesite from a 0.8 meter thick magnesite-vein 5x12.5 cm (1) Euro 6.00
M-217	Magnesite, Yerakari-Chalkis, Euboea Island, Greece Coliflowerform aggregate of Magnesite 6x7 cm (1) Euro 8.00
M-218	Magnesite, Yerakari-Chalkis, Euboea Island, Greece Magnesite Breccia with white magnesite and red clay-hematite rich veinlets 4.5x6.5 cm (1) Euro 5.00; 2.5x9 cm (1) Euro 4.00
M-220	Magnesite, Yerakari, Euboea Island, Greece Calcined magnesite which is used in the production of an excellent firebrick. Magnesite is also used in the manufacture of Epsom salts, face powder, boiler wrappings, and disinfectants. Glass Vial (2) Euro 2.50
M-222	Silicified Magnesite, Lagondi Kakazas,Yerakari-Chalkis, Euboea Island, Greece Magnesite replaced by silica from a tunnel in Lagondi Kakazas ca. 5x11 cm (1) Euro 4.00
M-236	Magnesite, Cerro Loma Guerra, Paraguachi, Isla Margarita, Venezuela White chalky massive MM (1) Euro 1.00; TN (1) Euro 3.00; 5x6 cm (1) Euro 10.00
M-237	Magnesite, San Antonio, Isla Margarita, Venezuela White magnesite concretions 6x8 cm (1) Euro 10.00; 9x11 cm (1) Euro 20.00
M-256	Magnetite, Schwarzsee, Zillertal, Tirol, Austria Good 3mm sized magnetite crystals in chloriteschist TN (1) Euro 1.00; 4x4 cm (1, photo) Euro 2.00 ; 4x6 cm (1) Euro 2.50
M-014	Magnetite, Olofsberg, Västerbotten, Sweden Crystalline magnetite in serpentine matrix HS (1) Euro 5.00
M-015	Magnetite, Afrikanda, Kola, Russia Black xls up to 1 cm on matrix TN (1) Euro 2.00
M-016	Magnetite, Talgenköpfe, Schlegeisstausee, Zillertaller Alpen, Austria Magnetite octahedrons (1-25 mm) in chlorite schist 3.5x5 cm (8) Euro 2.00
M-289	Magnetite, Mont St. Hilaire, Quebec, Canada Black crystalline in matrix 3.5x4 cm (1) Euro 6.00
M-292	Makarochkinite, Ishkul' Lake, Ilmen Mts, Ural, Russia (IMA 2002-009; T.L.) Black masses in matrix MM (1) Euro 33.00
M-021	Makatite, Aris, windhoek, Namibia White fibrous or powdery in small vugs with tuperssuatsiate 2x2.5 cm (1) Euro 7.50
M-024	Malachite, Grubenberg, Walhausen, Saarland, Germany Cavities in volcanic matrix lined with botryoidal malachite and occasionally small crystals 3x4.5 cm (1) Euro 2.50
M-025	Malachite, Isle of Thasos, Greece Cavities in sandstone matrix filled with aggregates of shiny green crystals 3x5 cm (1) Euro 6.00
M-026	Malachite, Warstein, Sauerland, Germany Very nice darkgreen crystals with chalcopyrite in cavities in matrix 2.5x4.5 cm (1) Euro 3.00
M-027	Malachite, Schmelz, Saarland, Germany Green botryoidal crusts and veins in/on matrix 2.5x3.5 cm (1) Euro 1.75
M-028	Malachite, Rösenbeck, Sauerland, Germany Sprays of malachite (up to 2 mm) crystals in association with limonite and calcite 4x6 cm (1) Euro 2.50
M-029	Malachite, Brown's Deposit, Rum Jungle, Northern Territory, Australia Nice deep green fanning aggregates up to 1 cm on matrix or as globular aggregates with cerussite (spec. C.) A. 3x4 cm (1) Euro 10.00; B. 4x5 cm (1) Euro 10.00; C. 3x6 cm (1) Euro 11.00
M-030	Malachite, Mount Isa Open Pit, Queensland, Australia Nice tufts and sprays on limonite matrix 6x7 cm (1) Euro 12.00
M-031	Malachite pseudomorph after azurite, Tsumeb, Namibia Large azurite xls completely/partially pseudomorphed, in clusters of single xls TN (2) Euro 8.00; MIN (1) Euro 20.00
M-032	Malachite, Käfersteige, Pforzheim, Schwarzwald, Germany Spray of shiny green malachite crystals on matrix 2x2 cm (1) Euro 1.75
M-034	Malachite, Imst, Schwaz-Brixlegg, Austria Small green spheres and crusts of this typical Schwaz-Brixlegg mineral TN to Minature (4) Euro 1.50
M-035	Malachite, Borstein, Reichenbach, Odenwald, Germany Dark-green boytroidal crusts with cuprite 2x4.5 cm (1) Euro 2.25
M-037	Malayaite, Red-a-Vein Mine, Meldon, Okehampton, Devon, U.K. Massive in matrix, glowing bright green/yellow under SW UV, rich pieces MM Euro 3.40; TN Euro 6.50
M-151	Manganite, Ilfeld, Harz, Germany Aggregate of 0.5-1 cm long manganite crystals (at least one shows terminations)  1x2 cm (2) Euro 5.00; 1.5x2 cm (1) Euro 8.00 Piece with vein consisting of numerous small manganite crystals 4x7 cm (1) Euro 4.00
M-052	Margarite, Muno, Luxembourg Province, Belgium Shiny white flakes in a chlorite-margarite-hematite-quartz schist from the Hercynian Givonne Massif TN (1) Euro 1.50
M-130	Maxwellite, Squaw Creek Tin Mine, Catron County, New Mexico Red crystals on and in matrix 2.5x4 cm (1) Euro 16.00
M-298	Mcallisterite, Lake Inder, Kazakhstan Colourless with kurnakovite ca. 4x4 cm (1) Euro 25.00
M-061	Mcguinnessite, Lobming, Steiermark, Austria Blue Botryoidal coatings on matrix MM (3) Euro 4.00
M-145	McKinstryite, Alexander, Vrancice near Pribram, Czech Republic Steel grey metallic in matrix TN to Min (3) Euro 12.00
M-063	Melanotekite/Macedonite/Richterite, Jacobsberg, Värmland, Sweden Dark grey, bluish tinted greasy inclusions rich with minor macedonite in richerite matrix 8.5x10 cm (1) Euro 25.00
M-152	Meneghinite, Bottino Mine, Serravezza, Tuscany, Italy (T.L.) Capsule with 1 cm large single Meneghinite crystals, with an old label of Dr. G. Garbari, Trento Capsule (1) Euro 30.00
M-146	Meurigite, Teskov Quarry near Rokycany, Bohemia, Czech Republic Light yellow fibrous xls on matrix some with duftite TN (1) Euro 6.00
M-261	Microcline, Pegmatite near Germil, North of Mangualde, Mina da Fonte da Cabra, Portugal Large light pinkish single Microcline crystal  8.5x8.5x13.5 cm (1) Euro 20.00
M-082	Microcline var. Amazonite, Crystal Peak, Teller County, Colorado, USA Single terminated xtal 2.5x2.5 cm (1) Euro 6.50
M-163	Microcline, Flå, Hallingdal, Norway Nice red colored microcline crystal associated with biotite and quartz; collected in 1974 3x4x8 cm (1) Euro 6.00
M-193	Microcline, 5km N. of Lassaro, 30 km SE of Dabakala, Ivory Coast Very large terminated single double terminated crystal  4.5x5x9 cm (1) Euro 35.00
M-088	Mimetite, Grube Michael im Weiler, Lahr, Black Forest, Germany Small olive-green thick prismatic xls on matrix 2x2.5 cm (1) Euro 4.00
M-089	Mimetite, Mount Bonnie, Northern Territory, Australia Well developped hexagonal mm-sized xls, rich on matrix 2.5x5 cm (1) Euro 6.50
M-090	Mimetite, Grube St. Anna, Lauenthal, Harz, Germany Nice sprays of yellow-green mimetite on matrix 2.5x3.5 cm (1) Euro 4.50
M-195	Mimetite, Gold Hill Mine, Tooele Co., Utah, USA Small colorless mimetite crystals lining cavities Min (3) Euro 2.00
M-093	Mixite, Borstein, Reichenbach, Odenwald, Germany Pale-green tufts on sparkling quartz matyrix 1x2 cm (1) Euro 3.00
M-148	Molybdenite, Hagen's Arsenical Pipe, Kingsgate, NSW, Australia Good 2-4 mm sized molybdenite crystals with associated chalcopyrite in quartz TN (1) Euro 4.00
M-149	Molybdenite, GNR, Bolivia, New South Wales, Australia Small shiny molybdenite crystals with pyrite in granite matrix MM (1) Euro 1.50; TN to Min (2) Euro 2.50
M-231	Molybdenite, Knaben, Kvinesdal, Vest-Agder, Norway Granitic gneiss with good coverage of crystalline molybdenite and often small molybdenite crystals Min (3) Euro 4.00; HS (1) Euro 10.00
M-279	Molybdenite, Topsham, Maine, USA Large molybdenite plates in quartz-feldspar matrix 4x8 cm (1) Euro 6.00
M-134	Monazite-(Ce), Cow Flat, Torrington, New South Wales, Australia Redbrown crystals up to 3 mm and grains some with smokey quartz MM (2) Euro 3.50
M-098	Montmorillonite, near Sander, Apache Co., Arizona, USA Ca-bearing massive montmorillonite from the Bidahochi formation Min (2) Euro 3.40
M-100	Montmorillonite-(Ca), N&U Hope Colleries, near Roswood, Queensland, Australia Grey massive chuncks with dolomite MM Euro 0.75; TN Euro 1.75; SC (1) Euro 3.40
M-101	Montmorillonite-(Na), Clay spur, Wyoming, USA Greenish-grey massive MM Euro 0.75
M-210	Montmorillonite, Kalkbruch Hunt, Saxony, Germany Purple powdery coating on matrix TN (1) Euro 3.00
M-106	Moraesite, Linopolis, Minas Gerais, Brazil Acicular xl sprays on matrix A. 1,5 x 2,5 cm Euro 27.00; B. 2 x 2 cm Euro 30.00
M-137	Moraesite, Linopolis, Minas Gerais, Brazil White spheroidal masses of tiny xls covering mica TN (1) Euro 5.00
M-109	Mottramite, Total Wreck Mine, Empire Mts., Pima County, Arizona Drusy microcrystalline black masses richly covering the matrix 3x4 cm (1) Euro 3.00
M-157	Mountain Leather, Coalinga, Fresno Co., California, USA Smooth, interlocking, fibrous white-green "sheet" composed, at this locality, of chrysotile and brucite 2x2 cm to 2x5 cm Euro 2.00
M-116	Muscovite, Gloserheia, Lyngrot, Aust-Agder, Norway Aggregate consisting of >100 of 1 cm sized muscovite xls with minor K-Feldspar intergrowths 10x17 cm (1) Euro 18.00
M-128	Muscovite, Gunheath Pit, St. Austell, Cornwall, U.K. cm-large muscovite crystals with little quartz 5x5.5 cm (1) Euro 3.00
M-187	Muscovite, Mursinka, Ural, Russia Small cabinet with muscovite flakes of 2-3 mm on quartz matrix 4x7 cm (1) Euro 4.50
M-198	Muscovite, Saint-Colomban des Villards, Belle Donne, France Pegmatite vein with cm-sized muscovite crystals 8x9 cm (1) Euro 3.00
M-199	Muscovite, Ourense, Galicia, Spain Available as a pegmatite sample with 1 cm large muscovite crystals or a quartz-muscovite specimen with a 3cm large muscovite crystals 4x5 cm (1, pegmatite) Euro 1.00; 2x4 cm (1) Euro 1.00
M-120	Muscovite, La Bastide-d'Engras, Gard, France 2 cm large muscovite crystals in feldspar matrix, collected in 1931 3x4 cm (1) Euro 3.00
M-253	Muscovite, Palermo #1 Pegmatite, North Groton, New Hampshire, USA Single irregular sheet of muscovite 9x22 cm (1) Euro 7.00
M-268	Muscovite, Steinbruch Elzing, Limbach-Oberfrohnau, Saxony, Germany Nice euhedral muscovite crystals on pegmatite crystals ca. 2.5x4 cm (1) Euro 4.00

All photos by Diederik Visser Minerals and are Copyrighted © and may not be used without permission