K archived mineral specimens

Kapundaite

#29871

Availability: Sold

Locality: Tom's Phosphate quarry, Kapunda, South Australia, Australia
Formula: NaCaFe₄(PO₄)₄(OH)₃·5H₂O
Size: SmCabinet 5.5x4x2.5cm
Tagged: phosphate
Special Info: Type Locality

Golden fibrous Kapundaite from the type locality.

Kapundaite at Dakota Matrix Kapundaite at WebMineral Kapundaite at MinDat

Kapustinite

#44125

Availability: Sold

Locality: Palitra pegmatite, Mt. Kedykverpakhk, Lovozero Massif, Kola Peninsula, Russia
Formula: Na₆ZrSi₆O₁₆(OH)₂
Size: SmCabinet 6x4x1cm
Special Info: Type Locality
Special Info: XRD Confirmed
Special Info: EDS Confirmed
Special Info: Author's Material

Dark reddish purple plates associated with Ussingite. Kapustinite is a two locality minerals and this is the type locality.

Identified by Dr. Igor Pekov. This specimen is from his study material when he described the mineral.

Kapustinite at WebMineral Kapustinite at MinDat

Karibibite

#35147

Availability: Sold

Featured: Featured in Special Editions
Locality: Tsumeb mine, Tsumeb, Namibia
Formula: Fe³⁺₂As³⁺₄O₉
Size: Thumbnail 0.8x0.7x0.6cm
Tagged: arsenate

Excellent sharp black crystals of Schneiderhohnite with orange fibrous Karibibite and platy Leiteite. This is an interesting specimen since Karibibite has not been reported or at least published from Tsumeb eventhough this specimen originated from Georg Gebhard. The RRUFF website has confirmed its identity at Tsumeb. However, the association of Karibibite with Schneiderhohnite is typical and has been recorded from Minas Gerais, Bou Azzer and the White Elephant mine in South Dakota. The label plus the occurence of Leiteite with this specimen validates its locality as Tsumeb. Ludlockite is a possibility given the chemistry and its known association with Leiteite at Tsumeb, but this does not look like Ludlockite. It is highly likely that Karibibite has been overlooked at Tsumeb and mistaken for Ludlockite. Gebhard labels this as coming from the third oxidation zone.

A copy of Gebhard's label is provided and can be seen in the provenance tab. The original was sold with another specimen I had previously.

Karibibite at Dakota Matrix Karibibite at WebMineral Karibibite at MinDat

Karibibite

#38364

Availability: Sold

Locality: Tsumeb mine, Tsumeb, Namibia
Formula: Fe³⁺₂As³⁺₄O₉
Size: Thumbnail 2x1.5x1cm
Tagged: arsenate

Orange fibrous Karibibite with platy Leiteite. This is an interesting specimen since Karibibite has not been reported or at least published from Tsumeb eventhough this specimen originated from Georg Gebhard. The RRUFF website has confirmed its identity at Tsumeb.

Karibibite at Dakota Matrix Karibibite at WebMineral Karibibite at MinDat