Inventory Search for Mineral Specimens and Products

Amesite

#BAC61419

Availability: Available
Price: $85.00
Reduced Price: $45.00

Locality: Saranovskii mine, Urals Region, Russia
Formula: Mg₂Al(SiAl)O₅(OH)₄
Size: 3.5 x 2.5 x 2.4 cm - Miniature

Eye-pleasing purple Amesite, is a phyllosilicate with basal cleavage. It seems to be color changing depending on the source light. The digital camera really brought out the purple.

Amesite at Dakota Matrix Amesite at WebMineral Amesite at MinDat

Anatase

#AH57167

Availability: Available
Price: $35.00

Locality: Coal Hill Lead vein, Rossie, St. Lawrence Co., New York, United States
Formula: TiO₂
Size: 3 x 2.5 x 2 cm - Thumbnail

Translucent blue crystals less than 1mm with a unique square termination.

Anatase at Dakota Matrix Anatase at WebMineral Anatase at MinDat

Anglesite

#60940

Availability: Available
Price: $195.00

Locality: Monteponi mine, Iglesias, Sardinia, Italy
Formula: PbSO₄
Size: 4.5 x 5.5 x 4 cm - Sm Cabinet

Textbook Anglesite crystals with striations along the 101 faces and long sloping terminations coming to a chisel point. The largest crystal to 1.3cm with numerous other crystals from 2 to 7mm. The color is a translucent yellowish tan with smoky tips. The overall pocket is 4 x 3.5cm on a Galena matrix. Excellent specimen formerly of ShelterRockMinerals (Terry Szenics).

Anglesite at Dakota Matrix Anglesite at WebMineral Anglesite at MinDat

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