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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:Apophyllite-(KF), Apophyllite-(KOH), Apophyllite-(NaF)


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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:
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  • Mineral Dealers:
  • The Arkenstone - Fine Minerals
  • rare and unusual minerals mainly crystallized
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  • Buy fine minerals and gemstones from Pala International
  • Mineral Classics - Worldwide Collector Quality Minerals and Gems
  • Wilensky Fine Minerals
  • Top quality minerals from Kristalle of California
  • Rare and Unusual minerals at Mineralogical Research Company
  • High-end worldwide specimens & outstanding customer service
  • Find Apophyllite on www.crystalclassics.co.uk
  • Buy from McDougall Minerals
  • Search for Apophyllite on Well-Arranged Molecules
  • Specimens:The following Apophyllite specimens are currently listed for sale on minfind.com.
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  • Localities for Apophyllite

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