Analcime

Formula: NaAlSi₂O₆·H₂O
Mineral class: silicates
Crystal system: div.
Mohs scale: 5 - 5.5
Density (g/cm³): 2.24 - 2.30
Refractive index: 1.479 - 1.493
Cleavage: poor
Colors: colorless, white, grey, yellow, green, pink
Luster: vitreous
Fluorescence: SW UV (rare): light blue
Pleochroism: -
Largest Analcime crystal: 25 cm?
Deposits: worldwide
1st description: 1892
Name: from the Greek word "analkis" (forceless)

Analcime Mineral

Size: 4.3 x 4.1 x 3.0 cm

Origin: Tunguska River / Evenkia / Krasnojarsk / Siberia / Russia

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Analcime

Weight: 0.62 ct

Origin: Nova Scotia / Canada

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Analcime Mineral

Size: 3.5 x 3 x 2.5 cm

Origin: Rio Fromm / Siusi Alp / Siusi / Bolzano / Italy

Photo by kind permission of © www.italianminerals.com

Analcime Mineral

Size: Micromount

Origin: Gads Hill / Upper Mersey Valley / Tasmania / Australia

Photo by kind permission of © Saul Krotki

Analcime Mineral

Size: Micromount

Origin: Copper Falls Mine / Copper Falls / Keweenaw County / Michigan / USA

Photo by kind permission of © Steve Stuart

Analcime Mineral

Size: 3.7 cm

Origin: Siusi Alp / Gardena Valley / Bolzano Province / Trentino-Alto Adige / Italy

Photo by kind permission of © Christian Bracke

Analcime Mineral

Size: Micromount

Origin: Tuften Quarries / Tvedalen / Larvik / Vestfold / Norway

Photo by kind permission of © Christian Bracke

Analcime Mineral SW UV

Size: 11 x 10 x 8 cm

Origin: Mt. Olladiri Quarry / Monastir / Cagliari Prov. / Sardinia / Italy

Photo by kind permission of © www.bestminerals.com