Alabandite

#BC52607

Availability: Available
Price: $275.00
Reduced Price: $175.00

Locality: Proprietary mine, Broken Hill, New South Wales, Australia
Formula: Mn²⁺S
Size: 9.5 x 6 x 3.5 cm - Cabinet

Dull dark grey long strands of Alabandite crystals to over 3cm. This is by all accounts a very nice, choice, specimen.

A note from a fine mineralogist:

First, no Alabandite was found at the Proprietary (Broken Hill Proprietary; BHP) Mine at Broken Hill. It is probably from the Zinc Corp. (ZC) Mine, 20st Level at Broken Hill. This is where these "Plumrose Spray" crystal groups were found. Second, current research has now found that these "Plumrose Spray" crystal groups are actually Alabandite pseudomorphs of Ramberite crystals not native Alabandite crystals.

Alabandite at Dakota Matrix Alabandite at WebMineral Alabandite 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

Anthophyllite with Magnesio-hornblende

#BW57394

SOLD

Availability: Sold

Locality: Richmond Soapstone quarry, Cheshire Co., New Hampshire, United States
Formula: □Mg₇Si₈O₂₂(OH)₂
Size: 7.5 x 5 x 2 cm - Sm Cabinet

Light greyish green Anthophyllite with dark green Magnesio-hornblende.

Anthophyllite at Dakota Matrix Anthophyllite at WebMineral Anthophyllite at MinDat

Argentojarosite

#BW57298

SOLD

Availability: Sold

Locality: Santa Ana mine, Santa Ana, Mun. de Onavas, Sonora, Mexico
Formula: AgFe³⁺₃(SO₄)₂(OH)₆
Size: 5 x 2.5 x 3 cm - Miniature
Tagged: silver

Greenish yellow, waxy-looking Argentojarosite with red Carminite.

Argentojarosite at Dakota Matrix Argentojarosite at WebMineral Argentojarosite at MinDat

Aubertite with Copiapite

#BW57380

SOLD

Availability: Sold

Locality: Chuquicamata mine, El Loa Prov., Antofagasta, Chile
Formula: Cu²⁺Al(SO₄)₂Cl·14H₂O
Size: 4 x 3.5 x 3 cm - Miniature
Tagged: copper

Light blue earthy Aubertite throughout the mass. The specimen also carries Quartz crystals, which look blue from the adjacent Aubertite. In the photos the crystals that are blue are just Quartz, not Aubertite. For a simple copper-aluminum sulfate it is only found in maybe a few dozen worldwide localities.

Aubertite at WebMineral Aubertite at MinDat