Some collectors have assumed that Llallagua monazite is monazite-(La) on the basis of old wet-chemical analyses (Federico Ahlfeld, Gordon (1939), and others) showing slightly more La than Ce; but those analyses referred to GROUPS of rare earth elements rather than La and Ce individually, and a considerable amount of Nd was included in the "La". Several more recent microprobe analyses show Ce-dominance. (Alfredo Petrov)

Confirmation

Validity:

Erroneously Reported

Data

Mineral Data:

Click here to view Monazite-(La) data

Locality Data:

Click here to view Siglo Veinte Mine, Llallagua, Rafael Bustillo Province, Potosí, Bolivia

Data Identifiers

Mindat Occurrence Record ID:

66613

Long-form Identifier:

1:3:66613:4

GUID (UUID V4):

3b87e3d7-4d1d-4738-bdad-72ea19c1f50e

Nearest other occurrences of Monazite-(La)

76.2km (47.3 miles)

ⓘ San José Mine, Oruro, Cercado Province, Oruro, Bolivia

References

(See comments above.)

Reference Search (possible matching items)

	*(2006) Llallagua. The Mineralogical Record* Vol. 37 (2) The Mineralogical Record, Inc.**	Journal (issue)
	Llallagua ineralogical Record March-April 2006 ❖ Volume 37 Number 2 ❖ $15 Wayne & Dona Leicht, 875...Two Articles Famous mineral localities: Llallagua, Bolivia . . . . . . . . . . . . . . . . . . . . ...Hyrsl & A. Petrov Lafossaite, a new mineral from the La Fossa Crater, Vulcano, Italy . . . . . . . . . ....spray, perhaps the finest known, 2 cm, from Llallagua, Bolivia. Mark Chance Bandy collection; current owner...practical experience at the Gottesehre (“God’s Honor”) mine, a small fluorite mining operation in Urberg, near
	*Chukanov, Nikita V. (2014) Infrared spectra of mineral species* Vol. 1 - Springer Geochemistry/Mineralogy. Springer Netherlands. doi:10.1007/978-94-007-7128-4**	Book (volume)
	Lavrion, Greece (6) and Cu-poor adamite from Ojuela mine, Mexico (7) IR spectra of acid salts (silicates...Ca2B4O4(OH)7Cl·7H2O Locality: Salar de Carcote deposit, El Loa province, Antofagasta, Chile. Description: Colourless crystal...borax deposit, Salar del Hombre Muerto, Salta province, Argentina (type locality). Description: Colourless...Arsenato-Borates Sussexite 29 Mn2+BO2(OH) Locality: Gonzen mine, Sargans, St. Gallen, Switzerland. Description:...District, Vakinankaratra Region, Antananarivo Province, Madagascar. Description: Grey grains from the
	*Moore, T.P. (2016) Moore's Compendium of Mineral Discoveries 1960 - 2015* Vol. 2. Mineralogical Record Inc.**	Book
	2013). MALAWI Mount Malosa, Chilwa alkaline province, Zomba district. "Illite" is the name of a series...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...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
	*(2016) Gem. The Definitive Visual Guide. Penguin Random House, London.*	Book
	birthstones Mask of Agamemnon ORGANIC GEMS Pearl La Peregrina Shell Mother-of-pearl Nautilus cup High...the Superpit is Australia’s largest open pit gold mine and is one of the largest open pit mines in the...Green Dresden Green \| Probably from the Kollur Mine in India, this 41-carat natural green diamond is...Discovered in an fewer than 0.5 parts per million Indian mine in the 18th century, (ppm), but areas of the Hope...“balas rubies,” taking their name from a famous mine in present-day Afghanistan. Russian envoy Nikolai
	*Chukanov, Nikita V., Chervonnyi, Alexandr D. (2016) Infrared Spectroscopy of Minerals and Related Compounds. Springer International Publishing. doi:10.1007/978-3-319-25349-7*	Book
	41)(Si3.86Al0.10 Fe0.04O10)(OH)2 from Mikhailovskii mine, Zheleznogorsk, Russia (Chukanov 2014a). IR spectra...In Fe3+-bearing Mg-poor schorl from the Limoeiro mine, Murta, Minas Gerais, Brazil, the band of OH groups...area), olmiite CaMn(HSiO4)(OH) from N’Chwaning II mine, Kalahari manganese ﬁelds, South Africa (c), and...brandtite Ca2Mn(AsO4)2·2H2O from skarn (Harstigen mine, Sweden) (b), and roselite Ca2Co(AsO4)2·2H2O from...from Cigana mine, Brazil (a), landesite [nominally, Fe3+Mn2+2 (PO4)2(OH)·] from Bull Moose mine, South Dakota

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Monazite-(La) from Siglo Veinte Mine, Llallagua, Rafael Bustillo Province, Potosí, Bolivia

Monazite-(La) from
Siglo Veinte Mine, Llallagua, Rafael Bustillo Province, Potosí, Bolivia