Mineral Specimens from Ivigtut

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Chiolite

#AK42507

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Data
Provenance
Resources

Locality: Ivigtut Cryolite deposit, Ivigtut, Arsuk Fjord, Sermersooq, Greenland
Formula: Na₅Al₃F₁₄
Availability: Sold
Size: 4 x 3.5 x 1 cm - Miniature

A clear mass of Chiolite with a Kidwell and University of Copenhagen label.

Chiolite

Formula: Na₅Al₃F₁₄
Crystal System: Tetragonal
Crystal Habit: Crystalline - Fine
Cleavage: Perfect, Distinct, None
Luster: Vitreous - Greasy
Color: colorless, snow white
Streak: white
Class: Tetragonal - Ditetragonal Dipyramidal
Hardness: 3.5-4

Collection: Kidwell Collection

Mineralpedia: View Chiolite
On Dakota Matrix: Previously Sold Chiolite
On Dakota Matrix: Other Available Chiolite
WebMineral: View Chiolite
Mindat: View Chiolite

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Cryolite

#32093

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Data
Provenance
Resources

Locality: Ivigtut Cryolite deposit, Ivigtut, Arsuk Fjord, Sermersooq, Greenland
Formula: Na₃AlF₆
Availability: Sold
Size: 3.5 x 2.5 x 2 cm - Miniature
Special Info: Type Locality

Murky white Cryolite.

Cryolite

Formula: Na₃AlF₆
Crystal System: Monoclinic
Crystal Habit: Massive - Granular, Euhedral Crystals
Cleavage: None, None, None
Luster: Vitreous - Greasy
Color: brownish black, colorless, gray, white, reddish brown
Streak: white
Class: Monoclinic - Prismatic
Fracture: Uneven
Hardness: 2.5-3

Collection: Phillips Collection
Special Info: Type Locality

Mineralpedia: View Cryolite
On Dakota Matrix: Previously Sold Cryolite
On Dakota Matrix: Other Available Cryolite
WebMineral: View Cryolite
Mindat: View Cryolite

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Cryolite

#PD42520

Details
Data
Provenance
Resources

Locality: Ivigtut Cryolite deposit, Ivigtut, Arsuk Fjord, Sermersooq, Greenland
Formula: Na₃AlF₆
Availability: Sold
Size: 9 x 7 x 6 cm - Sm Cabinet

A large specimen of massive Cryolite with 3-6mm colorless Cryolite crystals on one face.

Cryolite

Formula: Na₃AlF₆
Crystal System: Monoclinic
Crystal Habit: Massive - Granular, Euhedral Crystals
Cleavage: None, None, None
Luster: Vitreous - Greasy
Color: brownish black, colorless, gray, white, reddish brown
Streak: white
Class: Monoclinic - Prismatic
Fracture: Uneven
Hardness: 2.5-3

Collection: Phillips Collection

Mineralpedia: View Cryolite
On Dakota Matrix: Previously Sold Cryolite
On Dakota Matrix: Other Available Cryolite
WebMineral: View Cryolite
Mindat: View Cryolite

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Cryolithionite

in Cryolite - #PD42509

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Data
Provenance
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Locality: Ivigtut Cryolite deposit, Ivigtut, Arsuk Fjord, Sermersooq, Greenland
Formula: Na₃Al₂(LiF₄)₃
Availability: Sold
Size: 7 x 7 x 4 cm - Sm Cabinet
Special Info: Type Locality

Blackish Cryolite, probably irradiated, with a large 3cm crystal of colorless Cyrolithionite at the center (red arrow).

Cryolithionite

Formula: Na₃Al₂(LiF₄)₃
Crystal System: Isometric
Crystal Habit: Crystalline - Coarse
Cleavage: Good, Good, Good
Luster: Vitreous - Greasy
Color: colorless, white
Streak: white
Class: Isometric - Hexoctahedral
Fracture: Brittle - Conchoidal
Hardness: 2.5

Collection: Phillips Collection
Special Info: Type Locality

On Dakota Matrix: Previously Sold Cryolithionite
On Dakota Matrix: Other Available Cryolithionite
WebMineral: View Cryolithionite
Mindat: View Cryolithionite

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Galena

with Anglesite - #PD42508

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Data
Provenance
Resources

Locality: Ivigtut Cryolite deposit, Ivigtut, Arsuk Fjord, Sermersooq, Greenland
Formula: PbS
Availability: Sold
Size: 5 x 3 x 2 cm - Miniature
Tagged: sulfide

A thin 5mm layer of granular Galena with what looks like murky micro crystals of Anglesite, unreported from Ivigtut. This is according to the Ralph Merril label. He also notes "May have mineral A - Can. Min. 10, 871.