Mineral Specimen and Product Inventory Search
- Availability
- Sold
- Featured
- Featured in Special Editions
- Locality
- Mineville, Moriah Twp., Essex Co., New York, United States
- Formula
- CaYFe2+Al2(Si2O7)(SiO4)O(OH)
- Size
- 12 x 11 x 3.5 cm - Cabinet
- Tagged
- REE mineral
- Special Info
- Radioactive!!
Dull black thin tabular crystals of Allanite on the order of 1 to 1.5cm. This is an interesting specimen. It is porous and is mostly of feldspar matrix. The Allanite is randomly oriented throughout the matrix. It is clearly pegmatite. But a 1956 report by the USGS does not classify this deposit as a pegmatite. However there are several mines in the district. The USGS report states that "magnetite deposits at Mineville are in complexly folded highly metamorphosed sedimentary rocks and interlayered igneous rocks of Precambrian age. Kemp (1908) described them as "augite syenites and related types."
Further the USGS report states: "Laboratory studies indicate that most of the rare earths, thorium, and uranium in Old Bed ore are in fluorapatite. Monazite, bastnaesite, and hematite fill fractures in and form rims around some of the apatite.
There is no mention anywhere of secondary uranium minerals such as Kasolite and Uranophane. But on this specimen light yellow and lemon yellow secondaries can be seen.
- Availability
- Available
- Price
- $40.00
- Featured
- Featured in Special Editions
- Locality
- Mountain Pass mine, San Bernardino Co., California, United States
- Formula
- CeCO3F
- Size
- 2.8 x 2.9 x 3.3 cm - Miniature
- Tagged
- carbonate, REE mineral
Light pink segregations of Bastnasite-(Ce) in brown carbonate matrix.
The REE content of the Mountain Pass district was first discovered in 1949 by uranium prospectors. Mountain Pass is a massive carbonatite called the Sulfide Queen, which host the rare earth minerals. The typical ore contains 10-15% Bastnasite. It is the largest known mass of high-grade REE deposit in the USA.
The first operator was Molycorp which ceased mining in 2002 when its permit expired. Molycorp had plans to reopen, but by 2105 they went bankrupt. The mine's new owner is MP Materials. In December of 2021 General Motors and MP Materials entered long-term supply agreement to supply rare earth magnet production in the U.S. In 2021 production of 42,413 metric tons represents highest annual primary rare earth production in U.S. history. In February of 2022 MP Materials secured Department of Defense contract to supply processed heavy rare earths. MP produces primarily neodymium and praseodymium for powerful magnets used in electric cars, windmill turbines, drones, robuts, and military jets. Please click here for a good video overview of Mountain Pass as operated by MP Materials.
- Availability
- Sold
- Locality
- Tuliok River head, Kukisvumchorr Mt, Khibiny Massif, Murmansk Oblast, Russia
- Formula
- (Na,Ca)3(Sr,Ba,Ce)3(CO3)5
- Size
- 3 x 2 x 1.5 cm - Thumbnail
- Tagged
- carbonate, REE mineral
Brownish granular Burbankite, a rare-earth mineral.
- Availability
- Available
- Price
- $75.00
- Featured
- Featured in Special Editions
- Locality
- Yukspor Mt, Khibiny Massif, Kola Peninsula, Russia
- Formula
- (La,Ce,Ca)9(Fe,Ca,Mg)(SiO4)3(SiO3OH)4(OH)3
- Size
- 4 x 3.5 x 1.5 cm - Miniature
- Tagged
- REE mineral
- Special Info
- Type Locality
Cerite-(La) was renamed by the IMA in 2020 as Ferricerite. The Cerite occurs in a spongy mass as yellowish-tan granular crystals with reddish Ancylite. The white matrix is Natrolite.
- Availability
- Sold
- Featured
- Featured in Special Editions
- Locality
- Kirumba Complex, Bwito, Rutshuru, North Kivu, DR Congo
- Formula
- La(Y,U)Fe2(Ti,Fe,Cr,V)18(O,OH,F)38
- Size
- 5 x 4 x 2.5 cm - Miniature
- Tagged
- REE mineral, vanadium
- Special Info
- Radioactive!!
A black vitreous mass of Davidite. Davidite may contain some cerium and yttrium, and uranium which destroys its crystal structure. Thus, the Davidite is metamict. Primary uses for lanthanum include specialty glasses and optics, electrodes and hydrogen storage.
- Availability
- Sold
- Locality
- Little Patsy pegmatite, Jefferson Co., Colorado, United States
- Formula
- CeF3
- Size
- 2.5 x 1.5 x 0.8 cm - Thumbnail
- Tagged
- REE mineral
Two excellent crystals in combo to 1.7cm. The Little Patsy boast the best and largest crystals in the world. This one is quite nice with good form on both crystals.
