P archived mineral specimens

Paramelaconite

#PD36079

Availability: Sold

Locality: Algomah mine, Mass City, Ontonagon Co., Michigan, United States
Formula: Cu¹⁺₂Cu²⁺₂O₃
Size: SmCabinet 8x5x6cm
Tagged: copper
Special Info: XRD Confirmed

Large chunck with dark coppery or black massive Paramelaconite. The specimen comes with one of Paul Moore's label with the specimen number correspnding to the tag (see prov tab). Specimen has been analyzed by XRD as noted on label. Of course this doesn't compare to the excellent find by Shawn Carlson in 2003(?) when his group found superb crystals in the old workings.

Paramelaconite at WebMineral Paramelaconite at MinDat

Parapierrotite

#11180

Availability: Sold

Locality: Lookout Pass, Tooele Co., Utah, United States
Formula: TlSb₅S₈
Size: SmCabinet 6x3.5x1.5cm
Tagged: thallium

Silvery crystal grains to 1-2mm throughout this silicoues matrix colored black by organic matter. There may be a relation between the thallium minerals and the black organic matter. A handy short reference on this deposit can be found here (click). There are probably other thallium minerals in this specimen but identifying them is difficult and requires thin section work and/or EDS.

Parapierrotite at WebMineral Parapierrotite at MinDat

Paratacamite

#PD30921

Availability: Sold

Featured: Featured in Special Editions
Locality: Wheal Hazzard section, Botallack mine, St. Just dist., Cornwall, England
Formula: Cu²⁺₃(Cu,Zn)(OH)₆Cl₂
Size: Miniature 4x4x2.5cm
Tagged: copper