Checkout

0 item @ $0.00

Home | My Cart | Login | Register

Recently Released New Additions

Hide Solds

Rare & Systematic Minerals

Sunday, 07 May 2023 04:00 PM

Introducing the "Rare & Systematic Minerals" gallery which is part of our New Additions galleries. This gallery contains mineral specimens for sale including cabalzarite, graeserite, kobellite, orientite, schieffelinite, and warikahnite and more from places like Falotta, Tinzen, Sursass, Graubünden, Switzerland, Gorb, Lärchultini, Binntal, Wallis, Switzerland, Superior Stone quarry, Wake Co., North Carolina, United States, Manganese mine, Copper Harbor, Keweenaw Co., Michigan, United States, Grand Central mine, Tombstone, Cochise Co., Arizona, United States, and Plaka mines, Lavrion dist., East Attica, Attica, Greece.

Cabalzarite

#BAC61610

$95.00 - Available
Details
Add to Cart
Add to Favorites

Details
Data
Provenance
Resources

Locality: Falotta, Tinzen, Sursass, Graubünden, Switzerland
Formula: CaMg₂(AsO₄)₂·2H₂O
Availability: Available
Price: $95.00
Size: 1.3 x 0.9 x 0.8 cm - Thumbnail
Special Info: Type Locality

Salmon pink platy crystals in 1mm and less groups. Cabalzarite is a rare arsenate found in only three worldwide localities. On this specimen the crystals are on two sides.

Cabalzarite

Collection: William & Anne Cook Collection
Special Info: Type Locality

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

Graeserite

#BAC61615

$75.00 - Available
Details
Add to Cart
Add to Favorites

Details
Data
Provenance
Resources

Locality: Gorb, Lärchultini, Binntal, Wallis, Switzerland
Formula: Fe₄Ti₃AsO₁₃(OH)
Availability: Available
Price: $75.00
Size: 3 x 1.5 x 0.8 cm - Thumbnail
Special Info: Type Locality

Tiny 1mm and less acicular crystals throughout specimen. Graeserite is a rare titanium mineral with arsenic and found only in three places in the world.

Graeserite

Formula: Fe₄Ti₃AsO₁₃(OH)
Crystal System: Monoclinic
Crystal Habit: Acicular, Radial, Aggregates
Cleavage: Distinct, None, None
Luster: Metallic
Color: black
Streak: black
Class: Monoclinic - Prismatic
Fracture: Conchoidal
Hardness: 5.5

Collection: William & Anne Cook Collection
Special Info: Type Locality

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

Kobellite

with Arsenopyrite - #BAC61609

$65.00 - Available
Details
Add to Cart
Add to Favorites

Details
Data
Provenance
Resources

Locality: Superior Stone quarry, Wake Co., North Carolina, United States
Formula: Pb₁₁(Cu,Fe)₂(Bi,Sb)₁₅S₃₅
Availability: Available
Price: $65.00
Size: 3.5 x 2.5 x 2 cm - Miniature
Tagged: sulfide , copper

Imbedded silvery, striated crystal grains to 1cm with Arsenopyrite. The arrow points to a nice micro crystal of Arsenopyrite.

Kobellite

Formula: Pb₁₁(Cu,Fe)₂(Bi,Sb)₁₅S₃₅
Crystal System: Orthorhombic
Crystal Habit: Fibrous, Radial, Massive - Granular
Cleavage: Distinct, None, None
Luster: Metallic
Color: lead gray, steel gray
Streak: black
Class: Orthorhombic - Dipyramidal
Hardness: 2.5-3

Collection: William & Anne Cook Collection

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

Orientite

with Braunite - #BAC61624

$95.00 - Available
Details
Add to Cart
Add to Favorites

Details
Data
Provenance
Resources

Locality: Manganese mine, Copper Harbor, Keweenaw Co., Michigan, United States
Formula: Ca₈Mn³⁺₁₀(SiO₄)₃(Si₃O₁₀)₃(OH)₁₀·4H₂O
Availability: Available
Price: $95.00
Size: 2 x 1.5 x 1.5 cm - Thumbnail

Rusty red tiny tabular crystals. Rich and excellent specimen.

Orientite

Formula: Ca₈Mn³⁺₁₀(SiO₄)₃(Si₃O₁₀)₃(OH)₁₀·4H₂O
Crystal System: Orthorhombic
Crystal Habit: Radial, Prismatic
Cleavage: Indistinct, Indistinct, None
Luster: Vitreous (Glassy)
Color: brown, black
Streak: brown
Class: Orthorhombic - Dipyramidal
Hardness: 4-5

Collection: William & Anne Cook Collection

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

Schieffelinite

#BAC61626

$150.00 - Available
Details
Add to Cart
Add to Favorites

Details
Data
Provenance
Resources

Locality: Grand Central mine, Tombstone, Cochise Co., Arizona, United States
Formula: PbTeO₄·H₂O
Availability: Available
Price: $150.00
Size: 1.4 x 1.4 x 1 cm - Thumbnail
Tagged: tellurium
Special Info: Type Locality