Stillwellite-(Ce)
Template:Short description Script error: No such module "Infobox".Script error: No such module "Check for unknown parameters". Stillwellite-(Ce) is a rare-earth boro-silicate mineral with chemical formula Template:Chem2.
Location
It occurs as a metasomatic replacement of metamorphosed limestones in the Mary Kathleen mine, Australia and in alkalic pegmatites associated with syenite in an alkaline massif in Tajikistan.[1] It occurs in association with allanite, garnet, uraninite in the Australian deposit; with calcite, monazite, bastnasite, thorite, uranothorite and thorianite in the Desmont mine, Wilberforce, Ontario, Canada; and with pyrochlore, tienshanite, sogdianite, thorite, caesium kupletskite, reedmergnerite, steacyite, pectolite and quartz in the Tajikistan deposit.[1] It has also been reported from Mont Saint-Hilaire, Quebec, Canada and from Mineville, Essex County, New York. Other occurrences include the Inagli massif, Yakutia, Russia, around Langesundsfjord, Norway, in the Ilimaussaq intrusive complex, southern Greenland and the Vico volcano, Lazio, Italy.[1]
Discovery
It was first described in 1955 for an occurrence at the type locality is the Mary Kathleen mine, Script error: No such module "convert". east of Mount Isa, Queensland, Australia. It was named for Australian mineralogist Frank Leslie Stillwell (1888–1963).[2][3]
Chemistry Breakdown
| (1) | (2) | (1) | (2) | |||
|---|---|---|---|---|---|---|
SiO2 |
22.40 | 22.06 | La2O3 | 27.95 | 19.12 | |
| UO2 | 0.22 | Ce2O3 | 33.15 | 30.82 | ||
| ThO2 | 5.41 | Pr2O3 | 1.82 | |||
| B2O3 | 12.23 | [13.46] | Nd2O3 | 5.36 | ||
| Al2O3 | 0.42 | Sm2O3 | 0.34 | |||
| Y2O3 | 0.74 | 0.28 | Fe2O3 | 0.18 |
References
<templatestyles src="Reflist/styles.css" />
- ↑ a b c Cite error: Script error: No such module "Namespace detect".Script error: No such module "Namespace detect".
- ↑ Cite error: Script error: No such module "Namespace detect".Script error: No such module "Namespace detect".
- ↑ Cite error: Script error: No such module "Namespace detect".Script error: No such module "Namespace detect".
Script error: No such module "Check for unknown parameters".
Script error: No such module "Article stub box".