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Rare Minerals

Wednesday, 01 January 2025 06:00 PM

Introducing the "Rare Minerals" gallery which is part of our New Additions galleries. This gallery contains mineral specimens for sale including ameghinite, babingtonite, bavenite, berborite, bismutite, and brochantite and more from places like Tincalayu mine, Salta, Argentina, Bombay, Maharashta, India, Ermakovskoe Be deposit, Buryatia, Siberia, Russia, Vevja quarry, Tvedalen, Larvik, Vestfold, Norway, Schmiedestollen, Wittichen, Baden-Württemberg, Germany, and Lucky Lucy mine, Inyo Co., California, United States.

SOLD

Ameghinite - BAC65196

Ameghinite - BAC65196

Ameghinite

#BAC65196

Details
Data
Provenance
Resources

Locality: Tincalayu mine, Salta, Argentina
Formula: NaB₃O₃(OH)₄
Availability: Sold
Size: 0.7 x 0.4 x 0.2 cm - Thumbnail
Special Info: Type & Only Locality

A small sugary mass of this anhydrous borate found only at the Tincalayu mine. Very rare worldwide.

Ameghinite

Formula: NaB₃O₃(OH)₄
Crystal System: Monoclinic
Cleavage: Distinct, Imperfect, None
Luster: Vitreous (Glassy)
Color: colorless
Streak: white
Class: Monoclinic - Prismatic
Fracture: Brittle - Conchoidal
Hardness: 2-3

Collection: Arnold G Hampson Collection
Special Info: Type & Only Locality

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

Babingtonite - BAC65154

Babingtonite - BAC65154

Babingtonite

with Quartz - #BAC65154

$125.00 - Available
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Details
Data
Provenance
Resources

Locality: Bombay, Maharashta, India
Formula: Ca₂Fe²⁺Fe³⁺Si₅O₁₄(OH)
Availability: Available
Price: $125.00
Size: 6 x 2.5 x 2.5 cm - Sm Cabinet

Gorgeous, large, Babingtonite crystal to a whopping 1.7cm on spheroidal Prehnite with Quartz crystals.

Babingtonite

Formula: Ca₂Fe²⁺Fe³⁺Si₅O₁₄(OH)
Crystal System: Triclinic
Crystal Habit: Druse, Radial
Cleavage: Perfect, Perfect, None
Luster: Vitreous (Glassy)
Color: brownish black, greenish black, black
Streak: brown
Class: Triclinic - Pinacoidal
Fracture: Conchoidal
Hardness: 5.5-6

Collection: William & Anne Cook Collection

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

SOLD

Bavenite - 62330

Bavenite - 62330

Bavenite

#62330

Details
Data
Provenance
Resources

Locality: Ermakovskoe Be deposit, Buryatia, Siberia, Russia
Formula: Ca₄Be₂Al₂Si₉O₂₆(OH)₂
Availability: Sold
Size: 2.5 x 2.5 x 2 cm - Thumbnail
Tagged: beryllium

Beautiful pearly white, bladed divergent groups of Bavenite to 5mm.

Bavenite

Formula: Ca₄Be₂Al₂Si₉O₂₆(OH)₂
Crystal System: Orthorhombic
Crystal Habit: Lamellar, Massive - Lamellar, Radial
Cleavage: Perfect, Fair, None
Luster: Vitreous - Pearly
Color: white, green, pink, brown
Streak: white
Class: Orthorhombic - Pyramidal
Fracture: Uneven
Hardness: 5.5

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

SOLD

Berborite - 64387

Berborite - 64387

Berborite

#64387

Details
Data
Provenance
Resources

Locality: Vevja quarry, Tvedalen, Larvik, Vestfold, Norway
Formula: Be₂BO₃(OH)·H₂O
Availability: Sold
Size: 3 x 2 x 2 cm - Thumbnail
Tagged: beryllium

Thick prismatic crystal group to 1mm amogst waterclear Natrilite crystals.

Berborite

Formula: Be₂BO₃(OH)·H₂O
Crystal System: Hexagonal
Cleavage: Perfect, None, None
Luster: Vitreous (Glassy)
Color: colorless
Streak: white
Class: Hexagonal - Pyramidal
Fracture: Uneven
Hardness: 3

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

Bismutite - JD65243

Bismutite - JD65243

Bismutite

#JD65243

$30.00 - Available
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Details
Data
Provenance
Resources

Locality: Schmiedestollen, Wittichen, Baden-Württemberg, Germany
Formula: Bi₂O₂(CO₃)
Availability: Available
Price: $30.00
Size: 2 x 2 x 1.5 cm - Thumbnail
Tagged: carbonate

Yellow bead-like crystals grown on spindly Quartz.

Bismutite

Formula: Bi₂O₂(CO₃)
Crystal System: Orthorhombic
Crystal Habit: Fibrous, Earthy
Cleavage: Distinct, None, None
Luster: Vitreous - Pearly
Color: brown, brownish yellow, green, gray, yellow
Streak: gray
Class: Orthorhombic - Pyramidal
Hardness: 4

Collection: John Dagenais Collection

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

SOLD

Brochantite - JD65238

Brochantite - JD65238

Brochantite

#JD65238

Details
Data
Provenance
Resources

Locality: Lucky Lucy mine, Inyo Co., California, United States
Formula: Cu₄SO₄(OH)₆
Availability: Sold
Size: 5.5 x 3 x 3 cm - Sm Cabinet
Tagged: copper

Lustrous stubby prismatic crystals to about 0.75mm covering face.

Brochantite

Formula: Cu₄SO₄(OH)₆
Crystal System: Monoclinic
Crystal Habit: Acicular, Prismatic, Druse
Cleavage: Perfect, None, None
Luster: Vitreous - Pearly
Color: green, emerald green, black
Streak: pale green
Class: Monoclinic - Prismatic
Fracture: Brittle - Conchoidal
Hardness: 3.5-4

Collection: John Dagenais Collection

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

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