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Posted by Ralph Bottrill  
Ralph Bottrill March 03, 2012 02:24PM
This Article is Under Construction

4cm x 3cm x 2.5cm.

Click here to view Best Minerals M , and here for Best Minerals A to Z and here for Fast Navigation for finished Best Minerals articles.

Can you help make this a better article? What good localities have we missed? Can you supply pictures of better specimens than those we show here? Can you give us more and better information about the specimens from these localities? Can you supply better geological or historical information on these localities? After each set of pictures there should be some descriptive text. If none appears it means that we need someone to tell us about the specimens from that locality and something about the geology of the occurrence.

The name monazite is used here for all members of the monazite group. "Monazite", without a elemental suffix, was once the accepted name for all material in this group, regardless of the REE-bearing components' relative abundance. The suffixes were added when the naming convention for all REE-bearing members was devised and implemented.
Most "monazite" is monazite-(Ce), the La-, Nd-, Sm- and Gd-dominant members are all very rare.
Monazite often contains small amounts of U and/or Th, making it radioactive.

Torrington, Clive Co., New South Wales, Australia

Kings Bluff mine, Olary, Olary Province, South Australia, Australia
4cm x 3cm x 2.5cm.

Lower serpentinite quarry, Zwettler Leiten, Felling, Gföhl, Waldviertel, Lower Austria, Austria

Königsalm, Senftenberg, Waldviertel, Lower Austria, Austria

Hopffeldboden, Hopffeld area, Obersulzbach valley, Hohe Tauern, Salzburg, Austria

Lohning quarry (Lohninger quarry), Hüttwinkl valley, Rauris valley, Hohe Tauern, Salzburg, Austria

Diabase quarry, Biberg (Bieberg), Saalfelden, Salzburg, Austria

Oberschrammach glacier, Schrammacher, Zamser Grund (Zams valley), Ziller valley, North Tyrol, Tyrol, Austria

Llallagua, Rafael Bustillo Province (Bustillos Province), Potosí Department, Bolivia

Siglo Veinte Mine (Siglo XX Mine; Llallagua Mine; Catavi), Llallagua, Rafael Bustillo Province (Bustillos Province), Potosí Department, Bolivia
75 x 55 x 35 mm. crystals to 9 mm. and twinned. Crystals exhibit color change.

João Torres Mine, Muqui, Espírito Santo, Brazil
4.7 x 4.4 x 1.4 cm.

Buenópolis, Minas Gerais, Brazil
2.2x1.4x 1.3 cm

São João da Chapada, Diamantina, Jequitinhonha valley, Minas Gerais, Brazil

Ojaipee Mine, Doley Lake, Conger Township, Parry Sound District, Ontario, Canada

Poudrette quarry (Demix quarry; Uni-Mix quarry; Desourdy quarry; Carrière Mont Saint-Hilaire), Mont Saint-Hilaire, Rouville RCM, Montérégie, Québec, Canada

Czech Republic
U obrázku quarry, Písek, South Bohemia Region, Bohemia (Böhmen; Boehmen), Czech Republic

Dolní Bory, Žďár nad Sázavou, Vysočina Region, Moravia (Mähren; Maehren), Czech Republic

Trimouns Talc Mine, Luzenac, Ariège, Midi-Pyrénées, France

Plan-du-Lac, St Christophe-en-Oisans, Bourg d'Oisans, Isère, Rhône-Alpes, France

Trouée des Fées, Les Deux Alpes, Isère, Rhône-Alpes, France

La Lauzière massif, Savoie, Rhône-Alpes, France

L'Homme de Beurre, La Lauzière massif, Savoie, Rhône-Alpes, France

La Madeleine pass, La Lauzière massif, Savoie, Rhône-Alpes, France

La Léchère (Notre Dame de Briançon), Tarentaise valley, Savoie, Rhône-Alpes, France

Laach lake volcanic complex, Eifel, Rhineland-Palatinate, Germany

Agpat (Appat), Tunugdliarfik Firth (Eriksfjord), Ilimaussaq complex, Narsaq, Kitaa (West Greenland) Province, Greenland

Brenva Glacier, Veny Valley, Monte Bianco Massif (Mont Blanc Massif), Courmayeur, Aosta Valley, Italy
Miage Glacier, Veny Valley, Monte Bianco Massif (Mont Blanc Massif), Courmayeur, Aosta Valley, Italy

Ossola Valley, Verbano-Cusio-Ossola Province, Piedmont, Italy
xls mm3x3
FOV cm 1
Beura Quarries, Beura-Cardezza, Ossola Valley, Verbano-Cusio-Ossola Province, Piedmont, Italy

Vizze pass (Pfitsch pass), San Giacomo, Vizze Valley (Pfitsch Valley), Bolzano Province (South Tyrol), Trentino-Alto Adige, Italy
Croda Alta (Grawandkofel), Vizze pass (Pfitsch pass), San Giacomo, Vizze Valley (Pfitsch Valley), Bolzano Province (South Tyrol), Trentino-Alto Adige, Italy

Madiaomby pegmatite, Anjozorobe District, Ankazobe Pegmatite Field, Analamanga Region, Antananarivo Province, Madagascar
Ambatofotsikely pegmatite, Fidirana Commune, Betafo District, Vakinankaratra Region, Antananarivo Province, Madagascar

Ankazobe Pegmatite Field, Analamanga Region, Antananarivo Province, Madagascar Monazite, complete crystal, 22 x 17 x 8 mm., Ankazobe, Madagascar. Somewhat radioactive (~75 microrems/hr.). A Dave Shannon specimen, purchased in 2000, the label said collected in 1925. K. Nash

Narestø Feldspar Quarry, Flosta Island, Arendal, Aust-Agder, Norway

Landsverk 1 Feldspar Quarry (Jokeli), Landsverk, Evje og Hornnes, Aust-Agder, Norway

Iveland, Aust-Agder, Norway

Frøyså, Iveland, Aust-Agder, Norway

Rostadheia, Mølland, Iveland, Aust-Agder, Norway

Moss, Østfold, Norway

Zagi Mountain (Zegi Mountain; "Shinwaro"), Hameed Abad Kafoor Dheri, Peshawar, Khyber Pakhtunkhwa (North-West Frontier Province), Pakistan

FOV 20mm x 20mm.

Ytterlida pegmatite, Överlida, Svenljunga, Västergötland, Sweden

Rutströmsselet, Vassijaure, Lappland, Sweden
A 5 mm big Monazite

Råneå, Norrbotten, Sweden
15x20x30 mm

Normally the crystals are found in schorl from the Sörhällan quarry.
FOV 40mm x 40mm.

Cavradi gorge, Curnera Valley, Tujetsch (Tavetsch), Vorderrhein Valley, Grischun (Grisons; Graubünden), Switzerland

Croft Gothal Mine, St Hilary, Mount's Bay District, Cornwall, England, UK

Croft Gothal Mine, St Hilary, Mount's Bay District, Cornwall, England, UK

Cross Hill, Juniper Flats, Neuvo, Riverside Co., California, USA

McGuire pegmatite (Lone Lode; Lonesome pegmatite), Park Co., Colorado, USA
Slocum Prospect, East Hampton, Middlesex Co., Connecticut, USA

Andrews Quarry (old Hale Quarry; Grandfather Andrews Quarry), Portland, Middlesex Co., Connecticut, USA

Swamp #1 quarry, Topsham, Sagadahoc Co., Maine, USA

Bald Mountain, Ossipee, Carroll Co., New Hampshire, USA

Yates Brooks Farm, Lattimore, Cleveland Co., North Carolina, USA

Milford, San Francisco District (Frisco District), San Francisco Mts, Beaver Co., Utah, USA

Katydid Mine (Rogers Publishing Company Mine), Wilkerson Pass Area, Park Co., Colorado, USA


Edited 5 time(s). Last edit at 11/18/2012 01:07PM by Ralph Bottrill.
Rock Currier March 03, 2012 10:54PM
This should be interesting. Good hunting.

Rock Currier
Crystals not pistols.
Pavel Kartashov March 03, 2012 11:59PM
First of all we have four monazites for the moment: -(La), -(Ce), -(Nd) and -(Sm). And you should to state, that their abundance in rocks is Ce>>>La>>Nd>Sm. In other words, from 1000 monazites, 990 will turned out Ce-dominant, 9 La-dominant, 0.9 Nd-dominant and may be only 0.1 Sm-dominant.
Dean Allum March 04, 2012 04:35AM
You should ask Frank Roberts for pics of his Burnet County Monazites.
-Dean Allum
James Christopher March 04, 2012 05:46AM
Well, the Brown Derby in Gunnison, CO has monazite (Sm)
Craig Mercer November 17, 2012 05:00AM
Hi Ralph,

A specimen from the Zagi Mts, Pakistan that you may be able to use.

Edited 1 time(s). Last edit at 11/17/2012 05:01AM by Craig Mercer.
Ralph Bottrill November 18, 2012 01:08PM
Added, thanks Craig

Mark Heintzelman October 09, 2013 01:04AM
There is a classic old Monazite locality not yet listed: Boothwyn, Upper Chichester Township, Delaware Co., Pennsylvania, USA

Here is a pic of a large monazite from this locale which is already in the gallery. It has an unfortunate contact near the termination, but it is fairly close to maximum size noted for this occurrence.

Franklin Roberts January 25, 2014 05:04AM
I've posted several photos of them on my photo page.
Don Swenson January 25, 2014 10:45AM
The "Cast Mine", an unnamed test pit on Standpipe Hill, Topsham, Maine produced much larger monazite crystals than the Swamp #1 Quarry. Most of my specimens now belong to the new Maine Mineral Museum in Bethel.
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