Annite

#PD57608

Availability: Available
Price: $35.00

Featured: Featured in Special Editions
Locality: Redruth, Cornwall, England
Formula: KFe²⁺₃(Si₃Al)O₁₀(OH)₂
Size: 7 x 5.5 x 3 cm - Sm Cabinet

Bronzy black Annite flakes throughout mass.

Biotite has historically been treated as an individual mineral species by geologist. Rieder et. al in the Canadian Mineralogist v. 36 (1998), reclassified and placed Biotite within the Annite-Phlogopite series.

Biotite is a phyllosilicate of the Mica group and is classified as an ordinary (True or Common) mica meaning it has flexible cleavage plates. For more information on Mica minerals and other phyllosilicates please reference our article - Click Here.

Annite at Dakota Matrix Annite at WebMineral Annite at MinDat

Ansermetite

#BAC62695

Availability: Available
Price: $50.00

Locality: Fianel mine, Ausserferrera, Ferrera, Viamala, Grisons, Switzerland
Formula: MnV⁵⁺₂O₆·4H₂O
Size: 2.5 x 2 x 1.3 cm - Thumbnail
Tagged: vanadium
Special Info: Type Locality

Rusty red coatings on matrix. Fairly rare.

Ansermetite at WebMineral Ansermetite at MinDat

Anthophyllite

#CL62485

SOLD

Availability: Sold

Locality: Marga, Romania
Formula: □Mg₇Si₈O₂₂(OH)₂
Size: 5.5 x 3.5 x 3 cm - Sm Cabinet

White to tan and rusty orange, soft, fibrous radiating crystals to 2cm.

Anthophyllite at Dakota Matrix Anthophyllite at WebMineral Anthophyllite at MinDat

Arsenohauchecornite

#BAC62634

SOLD

Availability: Sold

Locality: Vermillion mine, Sudbury, Ontario, Canada
Formula: Ni₁₈Bi₃AsS₁₆
Size: 1.3 x 1 x 0.8 cm - Thumbnail
Tagged: sulfide, nickel. bismuth

The specimen was originally labelled as Bismutohauchecornite, but I am more inclined to call it Arsenohauchecornite based upon the brassy color and Bismutohauchecornite has not been reported from the Vermillion mine. The specimen sawed flat on two sides indicating it was probably worked on.

Arsenohauchecornite at WebMineral Arsenohauchecornite at MinDat