Checkout

0 item @ $0.00

Home | My Cart | Login | Register

Recently Released Special Editions

Hide Solds

Rare Earth Minerals

Thursday, 27 February 2020 12:00 PM

Introducing the "Rare Earth Minerals" gallery which is part of our Special Edition galleries. This gallery contains mineral specimens for sale including bastnasite-(ce), bastnasite-(la), calcioancylite-(ce), churchite-(y), decrespignyite-(y), and diversilite-(ce) and more from places like Mountain Pass mine, San Bernardino Co., California, United States, Paratoo Cu mine, Mt Lofty Ranges, South Australia, Australia, Afrikanda Massif, Kola Peninsula, Russia, Ploskaya Mt, Western Keivy Massif, Kola Peninsula, Russia, and Yukspor Mt, Khibiny Massif, Kola Peninsula, Russia.

SOLD

Bastnasite-(Ce) - PD34285

Bastnasite-(Ce) - PD34285

Bastnasite-(Ce)

#PD34285

Details
Data
Provenance
Resources

Locality: Mountain Pass mine, San Bernardino Co., California, United States
Formula: CeCO₃F
Availability: Sold
Size: 5 x 4 x 4.5 cm - Miniature
Tagged: carbonate , REE mineral

This was the main ore and source rock for the major REE elements mined at Mountain Pass. The specimen comes with a small vial of Bastnasite ore.

Bastnasite-(Ce)

Formula: CeCO₃F
Crystal System: Hexagonal
Crystal Habit: Prismatic, Massive - Granular
Cleavage: Imperfect, Indistinct, None
Luster: Vitreous - Greasy
Color: yellow, reddish brown
Streak: white
Class: Hexagonal - Ditrigonal Dipyramidal
Fracture: Uneven
Hardness: 4-5

Collection: Don Phillips Collection

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

SOLD

Bastnasite-(La) - 36348

Bastnasite-(La) - 36348

Bastnasite-(La)

#36348

Details
Data
Provenance
Resources

Locality: Paratoo Cu mine, Mt Lofty Ranges, South Australia, Australia
Formula: LaCO₃F
Availability: Sold
Size: 4.5 x 3 x 1 cm - Miniature
Tagged: carbonate , REE mineral

Thin light blue crusts on shaley matrix with Malachite. Basnasite-La is a rare mineral that occurs in carbonatites at its type locality in the Belaya Zima REE-Nb deposit in Russia. The blue in this bastnasite is due to an impurity of copper.

Bastnasite-(La)

Formula: LaCO₃F
Crystal System: Hexagonal
Crystal Habit: Prismatic, Massive - Granular
Cleavage: Imperfect, Indistinct, None
Luster: Vitreous - Greasy
Color: yellow, reddish brown
Streak: white
Class: Hexagonal - Ditrigonal Dipyramidal
Fracture: Uneven
Hardness: 4-5

Mineralpedia: View Bastnasite-(La)
On Dakota Matrix: Previously Sold Bastnasite-(La)
On Dakota Matrix: Other Available Bastnasite-(La)
WebMineral: View Bastnasite-(La)
Mindat: View Bastnasite-(La)

SOLD

Calcioancylite-(Ce) - PD52167

Calcioancylite-(Ce) - PD52167

Calcioancylite-(Ce)

#PD52167

Details
Data
Provenance
Resources

Locality: Afrikanda Massif, Kola Peninsula, Russia
Formula: (Ce,Ca,Sr)CO₃(OH,H₂O)
Availability: Sold
Size: 3.5 x 2.5 x 2 cm - Miniature
Tagged: carbonate , REE mineral

White to colorless crystal plates to 1.3cm.

Calcioancylite-(Ce)

Formula: (Ce,Ca,Sr)CO₃(OH,H₂O)
Crystal System: Orthorhombic
Crystal Habit: Pseudo Octohedral
Luster: Vitreous - Greasy
Color: colorless, gray, pale yellow
Class: Orthorhombic - Dipyramidal
Hardness: 4-4.5

Collection: Don Phillips Collection

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

SOLD

Churchite-(Y) - PD52166

Churchite-(Y) - PD52166

Churchite-(Y)

in amazonite - #PD52166

Details
Data
Provenance
Resources

Locality: Ploskaya Mt, Western Keivy Massif, Kola Peninsula, Russia
Formula: YPO₄·2H₂O
Availability: Sold
Size: 3 x 2 x 2 cm - Thumbnail
Tagged: phosphate , REE mineral

White grains of Churchite-(Y) in green Microcline, variey amazonite.

Churchite-(Y)

Formula: YPO₄·2H₂O
Crystal System: Monoclinic
Crystal Habit: Platy, Acicular, Aggregates
Cleavage: Perfect, None, None
Luster: Vitreous - Pearly
Color: colorless, gray, snow white
Streak: white
Class: Monoclinic
Fracture: Conchoidal
Hardness: 3

Collection: Don Phillips Collection

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

SOLD

Decrespignyite-(Y) - 23221

Decrespignyite-(Y) - 23221

Decrespignyite-(Y)

#23221

Details
Data
Provenance
Resources

Locality: Paratoo Cu mine, Mt Lofty Ranges, South Australia, Australia
Formula: Y₄Cu(CO₃)₄Cl(OH)₅·2H₂O
Availability: Sold
Size: 3.5 x 1.5 x 0.6 cm - Miniature
Tagged: carbonate , copper , REE mineral
Special Info: Type Locality

Superb, rich specimen of Decrespignyite-(Y) with bright royal blue layers.

Decrespignyite-(Y)

Formula: Y₄Cu(CO₃)₄Cl(OH)₅·2H₂O
Crystal System: Monoclinic
Crystal Habit: Efflorescences, Globular
Cleavage: None, None, None
Luster: Vitreous - Pearly
Color: intense royal blue, turquoise blue
Streak: pale blue
Class: Monoclinic
Hardness: 4

Special Info: Type Locality

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

SOLD

Diversilite-(Ce) - 44106

Diversilite-(Ce) - 44106

Diversilite-(Ce)

#44106

Details
Data
Provenance
Resources

Locality: Yukspor Mt, Khibiny Massif, Kola Peninsula, Russia
Formula: Na₂Ba₆Ce₂Fe²⁺Ti₃Si₁₂O₃₆(OH)₁₀·nH₂O
Availability: Sold
Size: 2.5 x 2 x 1.5 cm - Thumbnail
Tagged: REE mineral
Special Info: Type Locality

Tan platy crystals to 2mm in one place. Type and only locality. Extremely rare.

Diversilite-(Ce)

Formula: Na₂Ba₆Ce₂Fe²⁺Ti₃Si₁₂O₃₆(OH)₁₀·nH₂O
Crystal System: Trigonal
Crystal Habit: Fan Shaped, Subhedral Crystals, Platy
Cleavage: None, None, None
Luster: Vitreous (Glassy)
Color: yellowish orange
Streak: white
Class: Trigonal - Pyramidal
Fracture: Brittle - Conchoidal
Hardness: 5

Special Info: Type Locality

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

All photos by Dakota Matrix and are Copyrighted © and may not be used without permission. Copyright © 2023 - Dakota Matrix Minerals, Inc. Privacy | Terms & Conditions | Site Map

DakotaMatrix.com makes use of JavaScript

Please enable it in your browser's preferences, should you need assistance, follow this link for help enabling javascript in your browser.