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Rare Mineral Species

Monday, 25 November 2024 06:00 PM

Introducing the "Rare Mineral Species" gallery which is part of our New Additions galleries. This gallery contains mineral specimens for sale including plumbotsumite, powellite, queitite, sasaite, silver, and spangolite and more from places like Blue Bell mine, San Bernardino Co., California, United States, Nasik, India, Lucky Cuss mine, Tombstone, Cochise Co., Arizona, United States, Breitenau mine, Hochlantsch, Fischbacher Alpen, Styria, Austria, Highland Bell mine, Beaverdell, British Columbia, Canada, and Majuba Hill mine, Pershing Co., Nevada, United States.

SOLD

Plumbotsumite

#JD64934

Details
Data
Provenance
Resources

Locality: Blue Bell mine, San Bernardino Co., California, United States
Formula: Pb₅Si₄O₈(OH)₁₀
Availability: Sold
Size: 5 x 4.5 x 3 cm - Miniature

Colorless pseudo-hexagonal, well-defined crystals as well as groups with good coverage. Vey nice piece.

Plumbotsumite

Formula: Pb₅Si₄O₈(OH)₁₀
Crystal System: Orthorhombic
Cleavage: Perfect, None, None
Luster: Vitreous (Glassy)
Color: colorless
Streak: white
Class: Orthorhombic - Disphenoidal
Hardness: 2

Collection: John Dagenais Collection

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

SOLD

Powellite

with Stilbite - #BN64980

Details
Data
Provenance
Resources

Locality: Nasik, India
Formula: CaMoO₄
Availability: Sold
Size: 2 x 2 x 2 cm - Thumbnail

Choice striated, light brown crystals of lustrous Powellite. The largest is 1cm on edge.

Powellite

Formula: CaMoO₄
Crystal System: Tetragonal
Crystal Habit: Crystalline - Coarse, Granular
Cleavage: Distinct, None, None
Luster: Adamantine - Resinous
Color: blue, brown, green yellow, greenish blue, gray
Streak: light yellow
Class: Tetragonal - Dipyramidal
Fracture: Brittle - Conchoidal
Hardness: 3.5

Collection: Dr. Buford Nichols Collection

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

SOLD

Queitite

#56517

Details
Data
Provenance
Resources

Locality: Lucky Cuss mine, Tombstone, Cochise Co., Arizona, United States
Formula: Zn₂Pb₄(SiO₄)(Si₂O₇)(SO₄)
Availability: Sold
Size: 2.2 x 1.7 x 1 cm - Thumbnail

White crystallin mass with some prismatic individual crystals.

Queitite

Formula: Zn₂Pb₄(SiO₄)(Si₂O₇)(SO₄)
Crystal System: Monoclinic
Cleavage: Indistinct, Indistinct, None
Luster: Greasy (Oily)
Color: colorless, white, light yellow
Streak: white
Class: Monoclinic - Sphenoidal
Hardness: 4

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

SOLD

Sasaite

#CL64981

Details
Data
Provenance
Resources

Locality: Breitenau mine, Hochlantsch, Fischbacher Alpen, Styria, Austria
Formula: Al₆(PO₄)₅(OH)₃·36H₂O
Availability: Sold
Size: 10 x 10 x 5 cm - Cabinet
Tagged: phosphate

Faint green spheroidal crystals with an inside radial structure. Very rich and large specimen. The matrix seem to be somewhat serpentinized and shows slickensides. Sasaite is an uncommon aluminum phosphate.