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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 simplotite, sperrylite, stichtite, tetradymite, villiaumite, and vladimirivanovite and more from places like Peanut mine, Uravandist., Montrose Co., Colorado, United States, Talnakh deposit, near Noril'sk, Russia, Dundas, Zeehan, Tasmania, Australia, Ciclova, Banat Mountains, Cara?-Severin County, Romania, Koashva Mt., Khibiny Massif, Kola Peninsula, Russia, and Tultui lazurite dep., Slyudyanka dist., South Baikal, Siberia, Russia.

SOLD

Simplotite

#RS58597

Details
Data
Provenance
Resources

Locality: Peanut mine, Uravandist., Montrose Co., Colorado, United States
Formula: CaV⁴⁺₄O₉·5H₂O
Availability: Sold
Size: 5 x 5.5 x 2.5 cm - Sm Cabinet
Tagged: vanadium
Special Info: Type Locality

Black vitreous crystal grains to 1mm and stringers to 6mm in yellowish to dark brown sandstone matrix.

Simplotite

Formula: CaV⁴⁺₄O₉·5H₂O
Crystal System: Monoclinic
Crystal Habit: Micaceous, Platy
Cleavage: Perfect, None, None
Luster: Vitreous (Glassy)
Color: greenish black, dark green, black
Streak: brownish black
Class: Monoclinic - Prismatic
Hardness: 1

Collection: RC Stamberg Collection
Special Info: Type Locality

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

SOLD

Sperrylite

#58059

Details
Data
Provenance
Resources

Locality: Talnakh deposit, near Noril'sk, Russia
Formula: PtAs₂
Availability: Sold
Size: 3 x 2 x 1.7 cm - Thumbnail

Brilliant silvery cubic crystals of Sperrylite to 5mm. Excellent specimen.

Sperrylite

Formula: PtAs₂
Crystal System: Isometric
Crystal Habit: Disseminated, Crystalline - Fine
Cleavage: Indistinct, None, None
Luster: Metallic
Color: tin white
Streak: black
Class: Isometric - Diploidal
Fracture: Conchoidal
Hardness: 6-7

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

Stichtite

#RS58588

$50.00 - Available
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Details
Data
Provenance
Resources

Locality: Dundas, Zeehan, Tasmania, Australia
Formula: Mg₆Cr₂CO₃(OH)₁₆·4H₂O
Availability: Available
Price: $50.00
Size: 4 x 3 x 1.5 cm - Miniature
Tagged: carbonate

Rich purple soft mass of Stitchite formed by the alteration of serpentine rich in Chromite. It is often associated with Antigorite.

Stichtite

Formula: Mg₆Cr₂CO₃(OH)₁₆·4H₂O
Crystal System: Trigonal
Crystal Habit: Encrustations, Nodular, Micaceous
Cleavage: Perfect, None, None
Luster: Vitreous (Glassy)
Color: lilac, light violet, pink
Streak: pale violet blue
Class: Trigonal - Hexagonal Scalenohedral
Fracture: Uneven
Hardness: 1.5-2

Collection: RC Stamberg Collection

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

SOLD

Tetradymite

#RS58629

Details
Data
Provenance
Resources

Locality: Ciclova, Banat Mountains, Cara?-Severin County, Romania
Formula: Bi₂Te₂S
Availability: Sold
Size: 6.6 x 5.2 x 2.5 cm - Sm Cabinet
Tagged: sulfide , tellurium

Exceptionally rich specimen with silvery white, metallic masses of Tetradymite.

Tetradymite

Formula: Bi₂Te₂S
Crystal System: Trigonal
Crystal Habit: Lamellar, Granular, Pseudo Hexagonal
Cleavage: Perfect, None, None
Luster: Metallic
Color: steel gray, yellow gray
Streak: steel gray
Class: Trigonal - Hexagonal Scalenohedral
Fracture: Uneven
Hardness: 1.5-2

Collection: RC Stamberg Collection

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

SOLD

Villiaumite

with Pectolite - #57621

Details
Data
Provenance
Resources

Locality: Koashva Mt., Khibiny Massif, Kola Peninsula, Russia
Formula: NaF
Availability: Sold
Size: 6.5 x 5.2 x 4 cm - Sm Cabinet

Deep red crystals to 1.5cm with Pectolite.

Villiaumite

Formula: NaF
Crystal System: Isometric
Crystal Habit: Massive - Granular, Granular
Cleavage: Perfect, Perfect, Perfect
Luster: Vitreous (Glassy)
Color: colorless, dark red, orange brown, pink
Streak: pinkish white
Class: Isometric - Hexoctahedral
Fracture: Brittle
Hardness: 2.5

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

SOLD

Vladimirivanovite

#57816

Details
Data
Provenance
Resources

Locality: Tultui lazurite dep., Slyudyanka dist., South Baikal, Siberia, Russia
Formula: Na₆Ca₂[Al₆Si₆O₂₄](SO₄,S₃,S₂,Cl)₂·H₂O
Availability: Sold
Size: 1.8 x 1.2 x 0.6 cm - Thumbnail
Special Info: Type Locality
Special Info: XRD Confirmed
Special Info: EDS Confirmed
Special Info: Author's Material

Vladimirivanovite is the blue crystal grains and is a feldspathoid (silica deficient) of the Sodalite group. It was recognized as a new mineral in 2011 and so far been found in only two worldwide localities. The specimen is from the study material of Dr. Igor Pekov, who helped describe the mineral.

Vladimirivanovite

Special Info: Type Locality
Special Info: XRD Confirmed
Special Info: EDS Confirmed
Special Info: Author's Material

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

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