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Rare & Mixed Minerals

Thursday, 16 June 2022 06:00 PM

Introducing the "Rare & Mixed Minerals" gallery which is part of our New Additions galleries. This gallery contains mineral specimens for sale including copper, danalite, darapskite, deweylite, emplectite, and grantsite and more from places like Mass mine, Mass City, Ontonagon Co., Michigan, United States, Lupikko mine, Pitkäranta, Karelia Republic, Russia, Tarapaca Prov., Chile, Cedar Hill quarry, Lancaster Co., Pennsylvania, United States, Tannenbaum mine, Breitenbrunn dist., Erzgebirge, Saxony, Germany, and F-33 mine, Grants dist., Valencia Co., New Mexico, United States.

SOLD

Copper - RS58590

Copper - RS58590

Copper

#RS58590

Details
Data
Provenance
Resources

Locality: Mass mine, Mass City, Ontonagon Co., Michigan, United States
Formula: Cu
Availability: Sold
Size: 6.5 x 3 x 1.5 cm - Sm Cabinet
Tagged: copper , native element

A hackly mass of Copper.

Copper

Formula: Cu
Crystal System: Isometric
Crystal Habit: Nodular, Arborescent
Cleavage: None, None, None
Luster: Metallic
Color: brown, copper red, light pink, red
Streak: rose
Class: Isometric - Hexoctahedral
Fracture: Hackly
Hardness: 2.5-3

Collection: RC Stamberg Collection

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

SOLD

Danalite - 57747

Danalite - 57747

Danalite

#57747

Details
Data
Provenance
Resources

Locality: Lupikko mine, Pitkäranta, Karelia Republic, Russia
Formula: Be₃Fe²⁺₄(SiO₄)₃S
Availability: Sold
Size: 3 x 3 x 2.2 cm - Thumbnail
Tagged: beryllium
Special Info: XRD Confirmed
Special Info: EDS Confirmed

Red crystal grains of Danalite to about 1mm.

Danalite

Formula: Be₃Fe²⁺₄(SiO₄)₃S
Crystal System: Isometric
Crystal Habit: Massive
Cleavage: Indistinct, None, None
Luster: Vitreous - Greasy
Color: brown, brownish black, grayish yellow, pink, reddish brown
Streak: gray white
Class: Isometric - Hextetrahedral
Fracture: Uneven
Hardness: 5.5-6

Special Info: XRD Confirmed
Special Info: EDS Confirmed

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

SOLD

Darapskite - RS58607

Darapskite - RS58607

Darapskite

#RS58607

Details
Data
Provenance
Resources

Locality: Tarapaca Prov., Chile
Formula: Na₃(SO₄)(NO₃)·H₂O
Availability: Sold
Size: 3 x 1.5 x 1.5 cm - Thumbnail

White to yellow, sugary, Darapskite, a sodium sulfate-nitrate formed in masses of nitrate rock.

Darapskite

Formula: Na₃(SO₄)(NO₃)·H₂O
Crystal System: Monoclinic
Cleavage: Perfect, Good, None
Luster: Vitreous (Glassy)
Color: colorless
Streak: white
Class: Monoclinic - Prismatic
Fracture: Brittle - Uneven
Hardness: 2.5

Collection: RC Stamberg Collection

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

SOLD

Deweylite - RS58602

Deweylite - RS58602

Deweylite

#RS58602

Details
Provenance
Resources

Locality: Cedar Hill quarry, Lancaster Co., Pennsylvania, United States
Availability: Sold
Size: 9 x 5 x 3 cm - Sm Cabinet

Deweylite is a mixture of minerals including Stevensite and Lizardite but and contains a little nickel. This specimen is light green and waxy.

Collection: RC Stamberg Collection

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

SOLD

Emplectite - RS58627

Emplectite - RS58627

Emplectite

#RS58627

Details
Data
Provenance
Resources

Locality: Tannenbaum mine, Breitenbrunn dist., Erzgebirge, Saxony, Germany
Formula: Cu¹⁺BiS₂
Availability: Sold
Size: 5.5 x 6 x 3 cm - Sm Cabinet
Tagged: sulfide , copper

Steely grey prismatic crystals from 1 to 6mm embedded in matrix. Very good and rich specimen.

Emplectite

Formula: Cu¹⁺BiS₂
Crystal System: Orthorhombic
Crystal Habit: Prismatic, Granular, Massive - Fibrous
Cleavage: Perfect, None, None
Luster: Metallic
Color: gray, grayish yellow, silver white, tin white
Streak: black
Class: Orthorhombic - Dipyramidal
Fracture: Brittle
Hardness: 2

Collection: RC Stamberg Collection

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

SOLD

Grantsite - RS58613

Grantsite - RS58613

Grantsite

with Tyuyamunite - #RS58613

Details
Data
Provenance
Resources

Locality: F-33 mine, Grants dist., Valencia Co., New Mexico, United States
Formula: (Na,Ca)_2+x(V⁵⁺,V⁴⁺)₆O₁₆·4H₂O
Availability: Sold
Size: 4 x 2 x 2 cm - Miniature
Special Info: Type Locality

Black mass with yellow Tyuyamunite.

Grantsite

Formula: (Na,Ca)_2+x(V⁵⁺,V⁴⁺)₆O₁₆·4H₂O
Crystal System: Monoclinic
Crystal Habit: Crystalline - Fine, Fibrous, Bladed
Luster: Silky
Color: green black, dark green, olive green
Streak: brownish green
Class: Monoclinic - Prismatic
Fracture: Elastic
Hardness: 1-2

Collection: RC Stamberg Collection
Special Info: Type Locality

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

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