Aragonite

  

Twinned crystal

  

Twinned crystals, ex. O'Donnell collection

Origin: Molina de Aragon, Spain (type locality)

Sample size: 2 x 1.5 cm (top), 2 x 1.5 x 1.5 cm (bottom)

 

  

 

  

Ex. O'Donnell collection

Origin: Chihuahua, Mexico

Sample size: 7 x 5 x 4 cm, snow white, pearly luster (variety Flos Ferri) (top), 7 x 5 x 4 cm (bottom)

 

  

Origin: Crestmore quarry, Riverside Co., California, United States

Ex. DeVito collection

Sample size: 8 x 7 x 4 cm

 

  

Origin: Bou Asser, Morocco

Sample size: 5 x 3.5 x 3 cm

 

  

Copper stained aragonite

Origin: Tsumeb, Namibia

Sample size: 7 x 5 x 1 cm

 

Photo courtesy of: 

 

Origin: Laurium, Greece

Owner: Lou Perloff

Microscopic image

 

Origin: Tsumeb mine, Tsumeb, Namibia

Owner: Lou Perloff

Microscopic image

 

Photo courtesy of: 

Photo-Atlas of Minerals

Green fluorescent aragonite on calcite under UV-light

Origin: Chihuahua, Mexico

Owner: Axel Emmermann

 

Aragonite on calcite under SW-UV light

Origin: Jemelle, Namur, Belgium

Owner: Axel Emmermann

 

 

 

These strontio-aragonite crystals fluoresce red quite strong under long wave UV. The cause of the fluorescence probably lies in crystal defects that are caused by partial replacement of Ca²⁺ by Sr²⁺. Stereo photo under 366 nm UV, long wave.

Under short wave UV, these strontio-aragonite crystals fluoresce pale yellow with a pink tint. Presumably the same mechanism as with the red fluorescence under LW is at work here. Photo under 254 nm short wave UV.

Origin: Bocchegiano, Toscane, Italie

Owner: Axel Emmermann

Photo courtesy of: 

Homepage

  

Origin: Huttenberg, Lolling, Austria

Sample size: 6 x 6 x 3 cm

 

  

Origin: Santa Eulalia, Chihuahua, Mexico

Sample size: 15 x 6 x 11.5 cm

 

  

Origin: Memphis Mine, Dona Ana Co., New Mexico, U.S.A.

Ex. Don Belsher collection

Sample size: 8.7 x 4.7 x 4.5 cm

 

Photo courtesy of: 

Dealer in fine mineral specimens

 

1.5 mm divergent crystal group on prehnite

0.7 mm crystal on albite

Origin: Carsaig Bay, Carsaig, Isle of Mull, Argyll, Scotland, UK

Owner: Steve Rust

 

1.2 mm crystal group

Origin: Henfwlch Mine, Talybont, Ceulanymaesmawr, Ceredigion (Dyfed; Cardiganshire), Wales, UK

Owner: Steve Rust

 

Divergent groups of aragonite partly replaced by chrysocolla, on malachite and chrysocolla

Origin: New Cliff Hill Quarry, Stanton under Bardon, Leicestershire, England, UK

Owner: Steve Rust

 

Photo courtesy of: 

Steve Rust

 

Origin: Megala Pefka, Kamariza, Greece

Sample size: 4 x 5 x 8 cm

 

Photo courtesy of: 

Diederik Visser

Diederik Visser Minerals & Petrological Services

 

Page 2     Page 3     Page 4     Page 5     Page 6     Page 7     Page 8     Page 9     Page 10     Page 11     Page 12     Page 13     Page 14

Page 15     Page 16     Page 17     Page 18     Page 19     Page 20     Page 21     Page 22     Page 23     Page 24     Page 25     Page 26

Page 27     Page 28     Page 29     Page 30     Page 31     Page 32     Page 33     Page 34     Page 35     Page 36