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Apophyllite

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Colour:WhiteHardness:4½ - 5
Name:From the Greek for "away from" (ἀπό, apo) and "leaf" (φύλλον, phyllos), in allusion to the way it exfoliates upon heating.
Synonym of:Fluorapophyllite-(K), Fluorapophyllite-(Na), Hydroxyapophyllite-(K)


Visit gemdat.org for gemological information about Apophyllite. Currently in public beta-test.

Classification of Apophyllite

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Physical Properties of Apophyllite

Lustre:Vitreous, Pearly
Colour:White
Streak:White
Hardness (Mohs):4½ - 5
Density (measured):2.33 - 2.37 g/cm3
Density (calculated):2.37 g/cm3

Crystallography of Apophyllite

Crystal Atlas:
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Apophyllite no.4 - Goldschmidt (1913-1926)
Apophyllite no.5 - Goldschmidt (1913-1926)
Apophyllite no.6 - Goldschmidt (1913-1926)
Apophyllite no.18 - Goldschmidt (1913-1926)
Apophyllite no.51 - Goldschmidt (1913-1926)
Apophyllite no.98 - Goldschmidt (1913-1926)

About Crystal Atlas

The mindat.org Crystal Atlas allows you to view a selection of crystal drawings of real and idealised crystal forms for this mineral and, in certain cases, 3d rotating crystal objects. The 3d models and HTML5 code are kindly provided by www.smorf.nl.

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Optical Data of Apophyllite

Type:Uniaxial (+)
RI values: nω = 1.535 nε = 1.537
Maximum Birefringence:δ = 0.002

Chart shows birefringence interference colour range (at 30µm thickness) and does not take into account mineral colouration.
Surface Relief:Low

Other Names for Apophyllite

Synonyms:
ApofilliteApophyllite GroupBrünichiteBrünnichiteBrünnikite
Fisheye StoneIchthyophthalmeIchthyophthalmiteLeucocycliteMesoype
OxhaveriteOxheveritePyramidal ZeoliteTesselite
Other Languages:
Dutch:Apofylliet
French:Epointée
German:Albin
Apofillit
Apophyllit
Brünichit
Brünnichit
Brünnikit
Fischaugenstein (of Werner)
Ichthyophthalm
Ichthyophthalmit
Leucocyclit
Leukocyclit
Leukozyklit
Oxhaverit
Oxheverit
Tesselit
Hungarian:Apofillit-csoport
Japanese:魚眼石
Norwegian (Bokmål):Apofyllitt
Polish:Apofyllit
Portuguese:Apofilita
Russian:Апофиллит
Spanish:Apofilita
Apofillita
Apophyllita
Brünichita
Brünnichita
Brünnikita
Ichthyophthalmita
Leucocyclita
Oxhaverita
Oxheverita
Tesselita
Ukrainian:Апофіліт
Varieties:
Chromocyclite

Other Information

Health Warning:No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.

References for Apophyllite

Reference List:

- +
Dunn, Pete J., R.C. Rouse & J.A. Norberg (1978), Hydroxyapophyllite, a new mineral and a redefinition of the apophyllite group: Am. Min.: 63: 196-202.

Internet Links for Apophyllite

Search Engines:
  • Look for Apophyllite on Google
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  • Mineral Dealers:
  • Search for Apophyllite on Well-Arranged Molecules
  • Fine minerals from bisbeeborn.com
  • Fine and rare minerals from mintreasure.com
  • Buy RARE Minerals from Rocks of Africa
  • Fabre Minerals - search for Apophyllite specimens
  • Buy fine minerals and gemstones from Pala International
  • Top quality minerals from Kristalle of California
  • Buy from McDougall Minerals
  • DAKOTA MATRIX offers Cabinet and Rare Species from Worldwide Localities.
  • High-end worldwide specimens & outstanding customer service
  • Mineral Classics - Worldwide Collector Quality Minerals and Gems
  • Lapis Mineral Magazin
  • Specimens:The following Apophyllite specimens are currently listed for sale on minfind.com.

    Localities for Apophyllite

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