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Mixed Minerals

Sunday, 14 March 2021 06:00 PM

Introducing the "Mixed Minerals" gallery which is part of our New Additions galleries. This gallery contains mineral specimens for sale including baryte, corvusite, cuprite, hellandite-(y), hubnerite, and hutchinsonite and more from places like Elk Creek, Meade Co., South Dakota, United States, Worcester mine, Uravan dist., Montrose Co., Colorado, United States, Ray mine, Pinal Co., Arizona, United States, Lindvikskollen quarry, Krager�, Vestfold og Telemark, Norway, Adams mine, Silverton, San Juan Co., Colorado, United States, and Quiruvilca mine, Santiago de Chuco prov., La Libertad dept., Peru.

Baryte

on Calcite - #55342

$35.00 - Available
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Locality: Elk Creek, Meade Co., South Dakota, United States
Formula: BaSO₄
Availability: Available
Price: $35.00
Size: 5 x 4.5 x 3 cm - Miniature

A small but nice 9mm golden Baryte crystal with yellow Calcite.

Baryte

Formula: BaSO4
Crystal System: Orthorhombic
Crystal Habit: Tabular, Prismatic, Massive - Fibrous
Cleavage: Perfect, Perfect, Imperfect
Luster: Vitreous (Glassy)
Color: white, yellowish white, grayish white, brownish white, dark brown
Streak: white
Class: Orthorhombic - Dipyramidal
Fracture: Uneven
Hardness: 3-3.5

Collection: Arnold G Hampson Collection

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

SOLD

Corvusite

#AH55321

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Provenance
Resources

Locality: Worcester mine, Uravan dist., Montrose Co., Colorado, United States
Formula: (Na,Ca,K)_1-x(V⁵⁺,V⁴⁺,Fe²⁺)₈O₂₀·4H₂O
Availability: Sold
Size: 6.5 x 6 x 3 cm - Sm Cabinet
Tagged: vanadium

Black Corvusite interstitial in sandstone matrix deposited by vanadium rich solutions in sandstone roll front depostits. There are probably other minerals within the matrix, including Carnotite.

Corvusite

Formula: (Na,Ca,K)_1-x(V⁵⁺,V⁴⁺,Fe²⁺)₈O₂₀·4H₂O
Crystal System: Monoclinic
Crystal Habit: Fibrous, Massive - Lamellar
Luster: Earthy (Dull)
Color: brown, bluish black, greenish black
Streak: bluish black
Class: Monoclinic - Prismatic
Hardness: 2.5-3

Collection: Arnold G Hampson Collection

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

SOLD

Cuprite

with Azurite - #AH55329

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Locality: Ray mine, Pinal Co., Arizona, United States
Formula: Cu¹⁺₂O
Availability: Sold
Size: 7.5 x 6 x 5.5 cm - Sm Cabinet
Tagged: copper

Red Cuprite, variety chalcotrichite, in branching micro crystals on Azurite crystals. This is a good scoping material.

Cuprite

Formula: Cu¹⁺₂O
Crystal System: Isometric
Crystal Habit: Massive - Granular, Capillary
Cleavage: Imperfect, None, None
Luster: Adamantine
Color: brown red, purple red, red, black
Streak: brownish red
Class: Isometric - Hexoctahedral
Fracture: Brittle - Conchoidal
Hardness: 3.5-4

Collection: Arnold G Hampson Collection

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

SOLD

Hellandite-(Y)

#AH55336

Details
Data
Provenance
Resources

Locality: Lindvikskollen quarry, Krager�, Vestfold og Telemark, Norway
Formula: (Ca₃Y)Y₂AlB₄Si₄O₂₂(OH)₂
Availability: Sold
Size: 8.5 x 7 x 5 cm - Sm Cabinet
Tagged: REE mineral , pegmatite mineral
Special Info: Type Locality

White tablur crystals in Microcline-Schorl matrix. The crystals are up to 1.2cm and there are three of them.

Hellandite-(Y)

Formula: (Ca₃Y)Y₂AlB₄Si₄O₂₂(OH)₂
Crystal System: Monoclinic
Crystal Habit: Prismatic
Cleavage: Poor, Poor, None
Luster: Vitreous - Greasy
Color: green yellow, grayish black, reddish brown, black
Class: Monoclinic - Prismatic
Fracture: Brittle - Conchoidal
Hardness: 5.5-6

Collection: Arnold G Hampson Collection
Special Info: Type Locality

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

SOLD

Hubnerite

#AH55339

Details
Data
Provenance
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Locality: Adams mine, Silverton, San Juan Co., Colorado, United States
Formula: Mn²⁺WO₄
Availability: Sold
Size: 8.5 x 9.5 x 3.5 cm - Cabinet

Reddish brown plates of Hubnerite to 2.5cm.

Hubnerite

Formula: Mn²⁺WO₄
Crystal System: Monoclinic
Crystal Habit: Prismatic, Lamellar, Massive - Granular
Cleavage: Perfect, None, None
Luster: Sub Metallic
Color: brown, reddish brown, brownish black
Streak: reddish brown
Class: Monoclinic - Prismatic
Fracture: Brittle
Hardness: 4.5

Collection: Arnold G Hampson Collection

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

SOLD

Hutchinsonite

with Orpiment - #AH55314

Details
Data
Provenance
Resources

Locality: Quiruvilca mine, Santiago de Chuco prov., La Libertad dept., Peru
Formula: PbTlAs₅S₉
Availability: Sold
Size: 4.5 x 2.5 x 2 cm - Miniature

There are numerous very nice crystals of Hutchinsonite on this specimen to about 4mm. This specimen also includes very well-formed Orpiment crystals as orange sprays tucked in the mulitude of colorless Baryte crystals. It really is a fine specimen.

Hutchinsonite

Formula: PbTlAs₅S₉
Crystal System: Orthorhombic
Crystal Habit: Prismatic, Acicular
Cleavage: Good, None, None
Luster: Sub Metallic
Color: cherry red, pink, black
Streak: red
Class: Orthorhombic - Dipyramidal
Fracture: Brittle - Conchoidal
Hardness: 1.5-2

Collection: Arnold G Hampson Collection

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

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