Harmotome

 

Cruciform twins

Origin: St. Andreasberg, Harz, Lower Saxony, Germany

Owner: Lou Perloff

Microscopic image

 

Origin: Harlem Ship Canal, New York, New York, U.S.A.

Owner: Lou Perloff

Microscopic image

 

Photo courtesy of: 

Photo-Atlas of Minerals

Harmotome (cruciform twins)

Origin: Strontian, Argyll, Scotland

Owner: Milton Speckels

Samp;e size: crystals about 1 cm

 

Photo courtesy of: 

Photo-Atlas of Minerals

  

White harmotome crystals to 3 mm (bottom) with yellow to root beer coloured calcite to 1.2 cm (top right)

Origin: Strontian, Argyllshire, Scotland

Sample size: 12 x 10 x 5 cm

 

    

Yellow blocky harmotome 1 mm crystals lining 2 cm vug with white, prismatic natrolite to 1 mm
Origin: Pechsteinkopf, Forst, Bad Durkheim, Palatinate, Rhineland, Germany

Ex. DeVito collection

Sample size: 4 x 2.5 x 2.5 cm

 

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Gray crystals of harmotome with colourless calcite

Origin: Willi Agatz Mine, Dresden, Saxony, Germany

Picture size: 3 mm

Owner: Thomas Witzke

 

Photo courtesy of: 

  

Harmotome on calcite

Origin: Clashgorm mine, Strontian, Argyllshire, Scotland

Sample size: 9.5 x 5.5 x 5.5 cm

 

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Specimen of rootbeer brown calcite covered with milky white crystals of harmotome to 1 cm across

  

This specimen of calcite hosts thin bladed crystals of calcite and blocky crystals of the zeolite harmotome. The largest harmotome crystal is 1 cm across.

Origin: Strontian Mine, Strontian, Argyll, Scotland

Sample size: 7 x 4.3 cm (top), 8 x 5 cm (2nd row), 7.7 x 5.5 x 4 cm (3rd/bottom row)

 

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