There are 220 minerals priced at between $100 and $499.

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Olmiite

ID: 3881
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Four intergrown, very sharp, light tan crystals of olmiite to 1 cm on a bit of matrix. ExcellentTN of this rare (and newly described) manganese analog of poldervaartite found early this decade and now properly recognized as olmiite.


Price: $280.00
Location: N'Chwaning II Mine, Kalahari Manganese Fields, Kuruman, South Africa
Dimensions: 2.2 x 1.3 x 1.2cm
Size:

Orthoclase Var. Adularia with Chlorite (ex Nelson and E. David Coll.)

ID: 4152
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Interpenetrating, translucent crystals of the adularia variety of orthoclase, tinted green by inclusions of chlorite. Textbook example of the mineral from Switzerland!


Price: $200.00
Location: Val Medel, Graubunden, Switzerland
Dimensions: 6.5 x 5.8 x 3.5cm
Size:

Orthoclase var. Adularia with Chlorite (ex Nelson Coll.)

ID: 4262
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Very sharp, twinned crystals of orthoclase colored green from inclusions of chlorite. An alpine classic!


Price: $120.00
Location: Lukmanier, Switzerland
Dimensions: 8.1 x 6.5 x 5.5cm
Size:

Polybasite

ID: 6192
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Lustrous striated plates of the uncommon sulfosalt polybasite, with two different types of calcite crystals in association.


Price: $100.00
Location: Fresnillos, Zacatecas, Mexico
Dimensions: 2.4 x 1.2 x 1cm
Size:
Locality:

Prehnite after Laumontite (ex nelson Coll.)

ID: 5289
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Pastel green prehnite sprinkled with glassy micro apophyllites has completely replaced elongated laumontite crystals, leaving hollow prisms that are joined at varying angles. With ss much material as there is coming from India, these are relatively rare now and not an easy find .


Price: $180.00
Location: Bombay, Maharashtra, India
Dimensions: 8.7 x 6.5 x 5cm
Size:

Pyrite (ex Nelson Coll.)

ID: 4148
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Bright golden complex crystals (diploids) of pyrite to 1.1 cm on a crystalline pyrite matrix. Very sharp!


Price: $175.00
Location: Potosi Mining Dist., Potosi Dept., Bolivia
Dimensions: 5.5 x 4.3 x 4cm
Size:

Pyrite on Calcite

ID: 6343
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Brassy golden dodecahedrons of pyrite that appear to have layers on the surface of the crystals. These sit on a matrix of clear calcite prisms. Wonderful to find a Chinese pyrite with no damage.


Price: $180.00
Location: Daye Copper Mine, Daye County, Hubei Province, China
Dimensions: 9.8 x 6.3 x 3.5cm
Size:
Locality:

Pyrite on Sphalerite

ID: 6300
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Bright and golden, striated pyrite crystals sit on a matrix of lustrous jet black sphalerite crystals. The rear also shows some nice (but smaller) pyrites coating the matrix. Very fine old timer from this historical Colorado locality.


Price: $450.00
Location: Eagle Mine, Gilman District, Eagle County, Colorado
Dimensions: 11.4 x 9.2 x 4cm
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Pyrite with Calcite

ID: 6348
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Brilliant golden stacked pyrite cubes sit at the top of a calcite matrix with a row of gemmy calcites on one side. Exceptional for the locality.


Price: $150.00
Location: N'Chwaning II Mine, Kalahari Manganese Fields, Kuruman, South Africa
Dimensions: 6.5 x 5 x 5cm
Size:
Locality:

Pyrolusite with Quartz

ID: 6439
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Silvery black, radiating crystals of pyrolusite contrasting against massive white quartz frozen in the host rock. Old timer from this obscure mine in Michigan. Acq. from the Bradleys in 1953. Seems like the mine is defunct now.


Price: $100.00
Location: Taylor Mine, Baraga County, Michigan
Dimensions: 5.5 x 5 x 4cm
Size:
Locality:

There are 220 minerals priced at between $100 and $499.

Click on the mineral photo to see additional views of the specimen.