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Rare Earth Minerals

Tuesday, 19 April 2022 02:30 PM

Introducing the "Rare Earth Minerals" gallery which is part of our Special Edition galleries. This gallery contains mineral specimens for sale including fergusonite-(y), hingganite-(y), kozoite-(nd), lanthanite-(ce), loparite-(ce), and luteium oxide and more from places like Quartz Hill, Lake George, Park Co., Colorado, United States, Ploskaya Mt, Western Keivy Massif, Kola Peninsula, Russia, Mitsukoshi, Hizen-cho, Karatsu City, Saga, Kyushu, Japan, Nâm Xe REE deposit, Mt Fansipan, Phong Tho dist., Lai Châu Prov., Vietnam, Alluaiv Mt., Lovozero Massif, Kola Peninsula, Russia, and no locality.

SOLD

Fergusonite-(Y)

#BW58048

Details
Data
Provenance
Resources

Locality: Quartz Hill, Lake George, Park Co., Colorado, United States
Formula: YNbO₄
Availability: Sold
Size: 5 x 3.5 x 2 cm - Miniature
Tagged: REE mineral

A mass of vitreous, sub-metallic Fergusonite.

Fergusonite-(Y)

Formula: YNbO₄
Crystal System: Tetragonal
Crystal Habit: Prismatic, Metamict
Cleavage: Indistinct, None, None
Luster: Sub Metallic
Color: black, black, brown, gray, yellow
Streak: brown
Class: Tetragonal - Dipyramidal
Fracture: Sub Conchoidal
Hardness: 5.5-6

Collection: Bill Wilson Collection

Mineralpedia: View Fergusonite-(Y)
On Dakota Matrix: Previously Sold Fergusonite-(Y)
On Dakota Matrix: Other Available Fergusonite-(Y)
WebMineral: View Fergusonite-(Y)
Mindat: View Fergusonite-(Y)

SOLD

Hingganite-(Y)

with Yttrofluorite & amazonite - #BW58026

Details
Data
Provenance
Resources

Locality: Ploskaya Mt, Western Keivy Massif, Kola Peninsula, Russia
Formula: YBeSiO₄(OH)
Availability: Sold
Size: 3.5 x 3 x 3.5 cm - Miniature
Tagged: beryllium , REE mineral , pegmatite mineral

This is a colorful specimen with green Microcline, var. amazonite, and purple yttrofluorite, a variety of Fluorite. The Hingganite occurs on corroded yellowish brown plumbomicrolite as white to colorless acicular sprays from 0.5mm to 2mm groups.

Ploskaya is a Niobium-Yittrium-Fluorine (NYF) type pegmatite containing heavy rare earth elements (HREE). The pegmatite is now considered the largest amazonite deposit in the world with a beautiful solid green mass measuring 720 x 80ft.

Hingganite-(Y)

Formula: YBeSiO₄(OH)
Crystal System: Monoclinic
Crystal Habit: Wheat Sheaf, Aggregates
Cleavage: None, None, None
Luster: Vitreous (Glassy)
Color: green, yellow brown, white, light blue, light yellow
Streak: white
Class: Monoclinic - Prismatic
Fracture: Conchoidal
Hardness: 5-6

Collection: Bill Wilson Collection

On Dakota Matrix: Previously Sold Hingganite-(Y)
On Dakota Matrix: Other Available Hingganite-(Y)
WebMineral: View Hingganite-(Y)
Mindat: View Hingganite-(Y)

SOLD

Kozoite-(Nd)

#BW58030

Details
Data
Provenance
Resources

Locality: Mitsukoshi, Hizen-cho, Karatsu City, Saga, Kyushu, Japan
Formula: NdCO₃(OH)
Availability: Sold
Size: 3 x 2 x 1.5 cm - Thumbnail
Tagged: carbonate , REE mineral

Faint purple chalky crystals to 1mm groups in olivine matrix. May also contain noedymium, lanthanum, samarium and praseodyium. This locality also has these rare earth minerals: Kimuraite-(Y), Hizenite-(Y) (TL), Lanthanite-(Nd), Lokkaite-(Y), which may be present. Praseodymium may be substituted in the Kozoite structure, so included is a small vial of praseodymium oxide.

Neodymium is used in high tech, powerful magnets, lasers, and a coloring agent in ceramics and glass. The manufacturing of the magnets use 69% of the neodymium mined.

Kozoite-(Nd)

Formula: NdCO₃(OH)
Crystal System: Orthorhombic
Crystal Habit: Microscopic Crystals
Luster: Vitreous - Dull
Color: pale pinkish purple, white
Class: Orthorhombic - Dipyramidal
Hardness: -

Collection: Bill Wilson Collection

Mineralpedia: View Kozoite-(Nd)
On Dakota Matrix: Previously Sold Kozoite-(Nd)
On Dakota Matrix: Other Available Kozoite-(Nd)
WebMineral: View Kozoite-(Nd)
Mindat: View Kozoite-(Nd)

SOLD

Lanthanite-(Ce)

#BW58031

Details
Data
Provenance
Resources

Locality: Nâm Xe REE deposit, Mt Fansipan, Phong Tho dist., Lai Châu Prov., Vietnam
Formula: Ce₂(CO₃)₃·8H₂O
Availability: Sold
Size: 5.5 x 4 x 2.5 cm - Sm Cabinet
Tagged: carbonate , REE mineral

Granular reddish brown mass from a carbonatite deposit.

Lanthanite-(Ce)

Formula: Ce₂(CO₃)₃·8H₂O
Crystal System: Orthorhombic
Crystal Habit: Platy
Cleavage: Good, None, None
Luster: Vitreous (Glassy)
Color: colorless
Streak: white
Class: Orthorhombic - Dipyramidal
Fracture: Sectile
Hardness: 2.5

Collection: Bill Wilson Collection

On Dakota Matrix: Previously Sold Lanthanite-(Ce)
On Dakota Matrix: Other Available Lanthanite-(Ce)
WebMineral: View Lanthanite-(Ce)
Mindat: View Lanthanite-(Ce)

SOLD

Loparite-(Ce)

with Sodalite & Aegerine - #BW58032

Details
Data
Provenance
Resources

Locality: Alluaiv Mt., Lovozero Massif, Kola Peninsula, Russia
Formula: (Na,Ce,Sr)(Ce,Th)(Ti,Nb)₂O₆
Availability: Sold
Size: 3 x 2 x 2 cm - Thumbnail
Tagged: REE mineral
Special Info: Radioactive!!

Two large black, metallic crystal grains to 6mm with white Sodalite. Loparite is a REE mineral with thorium and titanium and is a member of the Perovskite group. It was first reported from the Lovozero alkaline massif in 1890. It was considered by W. Ramsay as "new mineral number 1" from Lovozero. It wasn't described until 1921.