The Phillips Collection

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Baryte

#PD31027

$350.00 - Sold
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Locality: Herja mine, Baia Mare, Maramures Co., Romania
Formula: BaSO₄
Availability: Sold
Size: 6 x 7 x 4 cm - Sm Cabinet
Tagged: sulfate

The photos speak for themselves on this specimen. I liken it to a waterfall of blue baryte cascading over the edge. I can't imagine how this formed, other than under ideal conditions. The crystals are the most basic forms of Baryte which are tabular with slight elongations on the a or b axis with the sharp corner pointed parallel along the lines of formation but with a divergent habit. Look at the photo, you'll see what I mean. Incredible piece. No damage, sits nice with a light blue color with some frosted white areas.

Baryte

Formula: BaSO4
Crystal System: Orthorhombic
Crystal Habit: Tabular, Prismatic, Massive - Fibrous
Cleavage: Perfect, Perfect, Imperfect
Luster: Vitreous (Glassy)
Color: white, yellowish white, grayish white, brownish white, dark brown
Streak: white
Class: Orthorhombic - Dipyramidal
Fracture: Uneven
Hardness: 3-3.5

Collection: Phillips Collection

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

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Boulangerite

with Chalcopyrite - #PD31463

$175.00 - Sold
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Locality: Felsobanya, Baia Mare, Maramures Co., Romania
Formula: Pb₅Sb₄S₁₁
Availability: Sold
Size: 1.5 x 5.5 x 4 cm - Sm Cabinet
Tagged: sulfide

Nice miniature with a nest of Boulangerite crystals covering the face in a 3.5 x 3cm area. Also shows some Chalcopyrite crystals to 6mm and Siderite or Dolomite in association.

Boulangerite

Formula: Pb₅Sb₄S₁₁
Crystal System: Orthorhombic
Crystal Habit: Acicular, Massive - Fibrous, Plumose
Cleavage: Indistinct, Indistinct, None
Luster: Metallic
Color: lead gray, blue gray, gray
Streak: reddish brown
Class: Orthorhombic
Fracture: Brittle
Hardness: 2.5

Collection: Phillips Collection

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

Calcite

var. manganoan - #PD30975

$40.00 - Available
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Locality: Montreal Mine, Iron Co., Wisconsin, United States
Formula: CaCO₃
Availability: Available
Price: $40.00
Size: 3 x 5.5 x 2 cm - Sm Cabinet
Tagged: carbonate

Pink manganoan Calcite casts or epimorphs with a second generation of crystals to 1mm lining the interior.

Calcite

Formula: CaCO₃
Crystal System: Trigonal
Crystal Habit: Crystalline - Coarse, Stalactitic, Massive
Cleavage: Perfect, Perfect, Perfect
Luster: Vitreous (Glassy)
Color: colorless, white, pink, yellow, brown
Streak: white
Class: Trigonal - Hexagonal Scalenohedral
Fracture: Brittle - Conchoidal
Hardness: 3

Collection: Phillips Collection

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

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Corundum

var. Sapphire - #PD30984

$150.00 - Sold
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Locality: Miass, Southern Urals, Russia
Formula: Al₂O₃
Availability: Sold
Size: 5.5 x 6 x 3.5 cm - Sm Cabinet

Rich blue large Corundum crystal showing twinning patterns and two crystal faces.

Corundum

Formula: Al₂O₃
Crystal System: Trigonal
Crystal Habit: Euhedral Crystals, Tabular, Prismatic
Cleavage: None, None, None
Luster: Vitreous (Glassy)
Color: blue, red, yellow, brown, gray
Streak: none
Class: Trigonal - Hexagonal Scalenohedral
Fracture: Tough
Hardness: 9

Collection: Phillips Collection

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

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Diopside

#PD30968

$450.00 - Sold
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Locality: Outokompu, Finland
Formula: CaMgSi₂O₆
Availability: Sold
Size: 6 x 4.5 x 3.5 cm - Sm Cabinet

Deep, rich green prismatic chromian Diopside crystals to 2cm, terminated on the front side and longer crystals showing on the back side. Excellent showy specimen.

Diopside

Formula: CaMgSi₂O₆
Crystal System: Monoclinic
Crystal Habit: Prismatic, Blocky, Granular
Cleavage: Good, Indistinct, None
Luster: Vitreous (Glassy)
Color: blue, brown, colorless, green, gray
Streak: white green
Class: Monoclinic - Prismatic
Fracture: Brittle - Conchoidal
Hardness: 6

Collection: Phillips Collection

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

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Dyscrasite

#PD32983

$300.00 - Sold
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Locality: St. Andreasberg dist., Harz, Lower Saxony, Germany
Formula: Ag_3.2Sb_0.8
Availability: Sold
Size: 3 x 3 x 2 cm - Thumbnail
Tagged: sulfide

Exceptional old-timer from this classic European locality with dull grey, deeply striated and typical, Dyscrasite crystals to 1.5cm in etched Calcite matrix.

Dyscrasite

Formula: Ag_3.2Sb_0.8
Crystal System: Orthorhombic
Crystal Habit: Pseudo Hexagonal, Scaly, Granular
Cleavage: Distinct, Distinct, Imperfect
Luster: Metallic
Color: gray, yellow, black, silver white
Streak: silver white
Class: Orthorhombic - Pyramidal
Fracture: Sectile
Hardness: 3.5-4

Collection: Phillips Collection

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

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