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| Colour: | White | Hardness: | 4½ - 5 |
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| Synonym of: | Apophyllite-(KF), Apophyllite-(KF) - Apophyllite-(KOH) Series, Apophyllite-(KOH), Apophyllite-(NaF) | ||
Classification of Apophyllite | ||||||||||||||||||||
| mindat.org URL: | http://www.mindat.org/min-283.html Please feel free to link to this page. | |||||||||||||||||||
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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: | Image Loading
Click on an icon to view
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 AtlasYou may need to scroll this box using your mouse to view the full instructions.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:
Note: You will not be able to switch between different crystal models using the Opera 8.5x web browser due to a bug in Opera - you need to use either Firefox or Internet Explorer 6/7 or Opera 9. | |||||||||||||||||||
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: |
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| Other Languages: | ||||||||||||||||||||
| Varieties: |
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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 | ||||||||||||||||||||
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Localities for Apophyllite | ||||||||||||||||||||
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The map shows a selection of localities that have latitude and longitude coordinates recorded. Click on the
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The symbol next to localities in the list
can be used to jump to that position on the map.These maps work faster with Firefox! | ||||||||||||||||||||
