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Apophyllite

Colour:WhiteHardness:4½ - 5
Synonym of:Apophyllite-(KF), Apophyllite-(KF) - Apophyllite-(KOH) Series, Apophyllite-(KOH), Apophyllite-(NaF)
This page provides mineralogical data about Apophyllite.

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

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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. You need Java to see these. You can download Java for free - click here to download Java

The 3d models and java code are kindly provided by www.smorf.nl. You can control the movement of the models by holding down the left mouse-button over the 3d model and moving your mouse. Keyboard controls are:

: default positions
t/T: decrease/increase transparency x/X: next/previous texture
b/B: next/previous background w: toggle wireframe
s: toggle sticks m: toggle miller indices
k: toggle crystallographic axes =/-: zoom in/out
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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:
ApofilliteBrünichiteBrünnichiteBrünnikiteIchthyophthalme
IchthyophthalmiteLeucocycliteMesoypeOxhaveriteOxheverite
Pyramidal ZeoliteTesselite
French names:
Epointée
German names:
AlbinApofillitApophyllitBrünichitBrünnichit
BrünnikitFischaugenstein (of Werner)IchthyophthalmIchthyophthalmitLeucocyclit
OxhaveritOxheveritTesselit
Japanese names:
魚眼石
Russian names:
Апофиллит
Spanish names:
ApofilitaApofillitaApophyllitaBrünichitaBrünnichita
BrünnikitaIchthyophthalmitaLeucocyclitaOxhaveritaOxheverita
Tesselita
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:
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  • Wendel Minerals - Auktion & Shop
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  • Mineral Classics - Worldwide Collector Quality Minerals and Gems
  • Find Apophyllite on www.crystalclassics.co.uk
  • Buy from David K Joyce minerals
  • Wright's Rock Shop - excellent mineral specimens since 1970
  • Lapis Mineral Magazin
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    Localities for Apophyllite

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