Search Archived Mineral Specimens

Availability

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Locality

Black Jack mine, Silver City dist., Owyhee Co., Idaho, United States

Formula

Ag₂Se

Size

Thumbnail 2x1.5x0.5cm

Tagged

sulfide , silver

Excellent specimen with "beaded" crystals in 2 to 3mm strings.

Availability

Sold

Locality

DeLamar mine, Owyhee Co., Idaho, United States

Formula

Ag₂Se

Size

SmCabinet 5.5x4x3cm

Tagged

selenium , silver

Granular compact crystalline masses. A very rich specimen of this rare silver selenide.

Availability

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Locality

Fair View mine, Pershing Co., Nevada, United States

Formula

Ag₂Se

Size

SmCabinet 9x4.5x1.5cm

Tagged

selenium , silver

Two veins of rare Naumannite shot up through Baryte. Looking closely at the veins, very silver grains are evident. The thick vein is about 2cm thick. The smaller vein is 5mm. Rare.

Availability

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Locality

DeLamar mine, Owyhee Co., Idaho, United States

Formula

Ag₂Se

Size

Thumbnail 1x1x1cm

Tagged

selenium , silver

Three small orthorhombic cubes to 1.5mm (the largest) and the other two at 1mm on a dark grey matrix of Naumannite and Pyrite.

Availability

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Featured

Featured in Special Editions

Locality

Monument #2 mine, Apache Co., Arizona, United States

Formula

(V⁵⁺,Fe³⁺)₁₀O₂₄·12H₂O

Size

Miniature 5x4.5x3cm

Tagged

vanadium

Special Info

Type Locality

Rusty red fibrous crystals with rich coverage. Excellent specimen.

Availability

Sold

Locality

Koashva Mt., Khibiny Massif, Kola Peninsula, Russia

Formula

Na₅Ca₄(PO₄)₄F

Size

Thumbnail 3x3x2.5cm

Tagged

phosphate , pegmatite mineral

Special Info

Poisonous!!

Special Info

Type Locality

Supreb rare white, acicular crystals of Nefedovite with purplish red Villiaumite. The Villiaumite occur as graphic intergrowths with the Nefedovite. Awesome specimen, very rare in nature and in the market. The associated Villiaumite is highly toxic and poisonous if ingested.