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Colorado Plateau Minerals

Saturday, 13 January 2024 05:30 PM

The Colorado Plateau encompasses a large area of the southwest including Arizona, Colorado, New Mexico and Utah. Many of these minerals are formed in roll front uranium deposits. They can be bright yellow or orange and beautiful to see under the microscope.

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Paramontroseite - BAC63187

Paramontroseite - BAC63187

Paramontroseite

#BAC63187

Details
Data
Provenance
Resources

Locality: Big Gypsum Valley, San Miguel Co., Colorado, United States
Formula: VO₂
Availability: Sold
Size: 3.5 x 2.3 x 1.2 cm - Miniature
Tagged: vanadium

Superb orthorhombic prismated black crystals in nest-like groups. The specimen originated with Patrick Haynes, an accomplished field collector and mineralogist,

Paramontroseite

Formula: VO₂
Crystal System: Orthorhombic
Cleavage: Good, None, None
Luster: Sub Metallic
Color: black
Streak: black
Class: Orthorhombic - Dipyramidal
Fracture: Brittle
Hardness: -

Collection: William & Anne Cook Collection

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

SOLD

Phurcalite - AH63205

Phurcalite - AH63205

Phurcalite

#AH63205

Details
Data
Provenance
Resources

Locality: Posey mine, San Juan Co., Utah, United States
Formula: Ca₂(UO₂)₃O₂(PO₄)₂·7H₂O
Availability: Sold
Size: 4 x 4 x 2 cm - Miniature
Tagged: phosphate
Special Info: Radioactive!!

Bright yellow acicular crystals throughout sandstone matrix.

Phurcalite

Formula: Ca₂(UO₂)₃O₂(PO₄)₂·7H₂O
Crystal System: Orthorhombic
Cleavage: Perfect, Perfect, Good
Luster: Vitreous - Adamantine
Color: yellow
Streak: yellow white
Class: Orthorhombic - Dipyramidal
Hardness: 3

Collection: Arnold G Hampson Collection
Special Info: Radioactive!!

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

SOLD

Phurcalite - AH63206

Phurcalite - AH63206

Phurcalite

#AH63206

Details
Data
Provenance
Resources

Locality: Posey mine, San Juan Co., Utah, United States
Formula: Ca₂(UO₂)₃O₂(PO₄)₂·7H₂O
Availability: Sold
Size: 5 x 2 x 2 cm - Miniature
Tagged: phosphate
Special Info: Radioactive!!

Bright yellow, tiny acicular crystals.

Phurcalite

Formula: Ca₂(UO₂)₃O₂(PO₄)₂·7H₂O
Crystal System: Orthorhombic
Cleavage: Perfect, Perfect, Good
Luster: Vitreous - Adamantine
Color: yellow
Streak: yellow white
Class: Orthorhombic - Dipyramidal
Hardness: 3

Collection: Arnold G Hampson Collection
Special Info: Radioactive!!

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

SOLD

Pintadoite - 57717

Pintadoite - 57717

Pintadoite

#57717

Details
Data
Provenance
Resources

Locality: West Sunday mine, San Miguel Co., Colorado, United States
Formula: Ca₂(V₂O₇) · 9H₂O
Availability: Sold
Size: 2.5 x 2 x 1.5 cm - Thumbnail

Olive green pulverulent masses.

Pintadoite

Formula: Ca2V2O7�9(H2O)
Crystal System: Tetragonal
Crystal Habit: Efflorescences
Color: light green, dark green
Streak: yellow green
Class: Tetragonal
Hardness: -

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

SOLD

Santafeite - BAC63191

Santafeite - BAC63191

Santafeite

#BAC63191

Details
Data
Provenance
Resources

Locality: Monument #1 mine, Navajo Co., Arizona, United States
Formula: (Ca,Sr,Na)₃(Mn²⁺,Fe³⁺)₂Mn⁴⁺₂(VO₄)₄(OH,O)₅·2H₂O
Availability: Sold
Size: 4.5 x 2.5 x 2 cm - Miniature
Tagged: vanadium

Black impregnation of sandstone with yellow unknown.

Santafeite

Formula: (Ca,Sr,Na)₃(Mn²⁺,Fe³⁺)₂Mn⁴⁺₂(VO₄)₄(OH,O)₅·2H₂O
Crystal System: Orthorhombic
Crystal Habit: Encrustations, Acicular
Cleavage: Perfect, Distinct, None
Luster: Subadamantine
Color: black
Streak: brown
Class: Orthorhombic - Disphenoidal
Fracture: Brittle
Hardness: -

Collection: William & Anne Cook Collection

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

SOLD

Schoepite - AH63188

Schoepite - AH63188

Schoepite

#AH63188

Details
Data
Provenance
Resources

Locality: Happy Jack mine, White Canyon, San Juan Co., Utah, United States
Formula: (UO₂)₈O₂(OH)₁₂·12H₂O
Availability: Sold
Size: 7 x 5 x 1 cm - Sm Cabinet
Special Info: XRD Confirmed
Special Info: Raman

Glassy, bright yellow radial and flat-lying crystals. Very specimen.

Schoepite

Formula: (UO₂)₈O₂(OH)₁₂·12H₂O
Crystal System: Orthorhombic
Cleavage: Perfect, Indistinct, None
Luster: Adamantine
Color: yellow, lemon yellow, brownish yellow, amber
Streak: light yellow
Class: Orthorhombic - Pyramidal
Fracture: Brittle
Hardness: 2.5

Collection: Arnold G Hampson Collection
Special Info: XRD Confirmed
Special Info: Raman

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

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