Checkout

1 item @ $25.00

Home | My Cart | Login | Register

Recently Released New Additions

Hide Solds

Rare Minerals for Collectors

Friday, 21 March 2025 06:00 PM

Introducing the "Rare Minerals for Collectors" gallery which is part of our New Additions galleries. This gallery contains mineral specimens for sale including proustite, pucherite, rouaite, sampleite, siderite, and sphalerite and more from places like Jachymov, Erzgegirge, Bohemia, Czech Republic, Pucher shaft, Schneeberg dist., Erzgebirge, Saxony, Germany, Santa Catalina mine, Sierra Gorda, Atacama prov., Chile, Hüttenberg Erzberg, Carinthia, Austria, and Les Malines dist., Occitanie, France.

Proustite

with Arsenic - #65501

$250.00 - Available
Details
Add to Cart
Add to Favorites

Details
Data
Provenance
Resources

Locality: Jachymov, Erzgegirge, Bohemia, Czech Republic
Formula: Ag₃AsS₃
Availability: Available
Price: $250.00
Size: 6 x 4 x 4.5 cm - Sm Cabinet
Tagged: sulfide , silver

Prismatic cherry red Proustite crystals to 3.5mm associated with Siderite and Quartz crystals. Excellent specimen for this classic locality.

Proustite

Formula: Ag₃AsS₃
Crystal System: Trigonal
Crystal Habit: Massive, Crystalline - Poor, Blocky
Cleavage: None, None, None
Luster: Sub Metallic
Color: vermilion, reddish gray
Streak: vermilion red
Class: Trigonal - Hexagonal Scalenohedral
Fracture: Brittle - Sectile
Hardness: 2-2.5

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

Pucherite

#65498

$195.00 - Available
Details
Add to Cart
Add to Favorites

Details
Data
Provenance
Resources

Locality: Pucher shaft, Schneeberg dist., Erzgebirge, Saxony, Germany
Formula: BiVO₄
Availability: Available
Price: $195.00
Size: 3.5 x 3 x 1 cm - Miniature
Tagged: vanadium

Tiny brown euhedral crystals less than 0.4mm in size.

Pucherite

Formula: BiVO₄
Crystal System: Orthorhombic
Crystal Habit: Tabular, Acicular, Pulverulent
Cleavage: Perfect, None, None
Luster: Vitreous - Adamantine
Color: yellow brown, dark brown red, pink brown, reddish brown
Streak: yellow
Class: Orthorhombic - Dipyramidal
Fracture: Brittle - Conchoidal
Hardness: 4

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

Rouaite

#65647

$125.00 - Available
Details
Add to Cart
Add to Favorites

Details
Data
Provenance
Resources

Locality: Jachymov, Erzgegirge, Bohemia, Czech Republic
Formula: Cu₂NO₃(OH)₃
Availability: Available
Price: $125.00
Size: 2.7 x 1.5 x 1 cm - Thumbnail
Tagged: copper

Emerald green square plates of Rouaite to about 0.3mm. There are several good crystals. I do not know what the granular grey matrix is, perhaps Cuprite, but I don't think so. This is a uncommon copper nitrate and occurs in 13 countries. Three or four of the localities is a slag locality.

Rouaite

Formula: Cu₂NO₃(OH)₃
Crystal System: Monoclinic
Crystal Habit: Euhedral Crystals, Aggregates, Equant Grains
Cleavage: Perfect, None, None
Luster: Vitreous (Glassy)
Color: dark emerald green
Streak: green
Class: Monoclinic - Sphenoidal
Fracture: Splintery
Hardness: -

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

SOLD

Sampleite

#65523

Details
Data
Provenance
Resources

Locality: Santa Catalina mine, Sierra Gorda, Atacama prov., Chile
Formula: NaCaCu₅(PO₄)₄Cl·5H₂O
Availability: Sold
Size: 6.8 x 4.7 x 3.5 cm - Sm Cabinet
Tagged: phosphate , copper

Flattened neon blue crystals to 1mm across.

Sampleite

Formula: NaCaCu₅(PO₄)₄Cl·5H₂O
Crystal System: Orthorhombic
Crystal Habit: Rosette, Lath, Aggregates
Cleavage: Perfect, Good, Good
Luster: Pearly
Color: bluish green, light blue
Streak: bluish white
Class: Orthorhombic - Dipyramidal
Hardness: 4

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

Siderite

#65520

$250.00 - Available
Details
Add to Cart
Add to Favorites

Details
Data
Provenance
Resources

Locality: Hüttenberg Erzberg, Carinthia, Austria
Formula: FeCO₃
Availability: Available
Price: $250.00
Size: 5.5 x 5.5 x 2 cm - Sm Cabinet
Tagged: carbonate

Excellent rhombic crystals to 7mm. Great color and luster.

Siderite

Formula: FeCO₃
Crystal System: Trigonal
Crystal Habit: Tabular, Massive, Botryoidal
Cleavage: Perfect, Perfect, Perfect
Luster: Vitreous (Glassy)
Color: yellowish brown, brown, gray, yellowish gray, greenish gray
Streak: white
Class: Trigonal - Hexagonal Scalenohedral
Fracture: Brittle - Conchoidal
Hardness: 3.5

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

Sphalerite

#65522

$75.00 - Available
Details
Add to Cart
Add to Favorites

Details
Data
Provenance
Resources

Locality: Les Malines dist., Occitanie, France
Formula: ZnS
Availability: Available
Price: $75.00
Size: 6.5 x 3 x 5 cm - Sm Cabinet
Tagged: sulfide

Material sold from this locality was previously though to be Wurtzite. It was not, it is Sphalerite. These crystals reach 2mm and are a splendid red to orange.

Sphalerite

Formula: ZnS
Crystal System: Isometric
Crystal Habit: Euhedral Crystals, Granular, Colloform
Cleavage: Perfect, Perfect, Perfect
Luster: Resinous - Greasy
Color: brown, yellow, red, green, black
Streak: brownish white
Class: Isometric - Hextetrahedral
Fracture: Uneven
Hardness: 3.5-4

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

New Minerals

Daily Five Minerals

Special Editions
by Mineral Gallery

All Mineral Specimens
A to Z

Searches

Searches

Recently Released New Additions

Rare Minerals for Collectors