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Pyknite
A variety of Topaz
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About Pyknite
Formula:
Al2(SiO4)(F,OH)2
Colour:
white to lemon yellow
Name:
From the Greek 'pyknos' which means 'dense', referring to its appearance.
Fine-grained topaz, occurring in dense aggregates of prismatic to acanthine crystals.
Unique Identifiers
Mindat ID:
11121 (as Pyknite)
3996 (as Topaz)
3996 (as Topaz)
Long-form identifier:
mindat:1:1:11121:4 (as Pyknite)
mindat:1:1:3996:9 (as Topaz)
mindat:1:1:3996:9 (as Topaz)
Similar Names
Physical Properties of Pyknite
Transparency:
Translucent
Colour:
White to lemon yellow
Streak:
White
Chemistry of Pyknite
Mindat Formula:
Al2(SiO4)(F,OH)2
Element Weights:
Synonyms of Pyknite
Other Language Names for Pyknite
Spanish:Piknita
Common Associates
Associations Based on Photo Data:
| 29 photos of Pyknite associated with 'Zinnwaldite' | |
| 20 photos of Pyknite associated with Quartz | SiO2 |
| 1 photo of Pyknite associated with 'Siderophyllite-Polylithionite Series' | |
| 1 photo of Pyknite associated with Fluorite | CaF2 |
Other Information
Health Risks:
No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.
Internet Links for Pyknite
mindat.org URL:
https://www.mindat.org/min-11121.html
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References for Pyknite
Localities for Pyknite
Showing 8 localities.
symbol to view information about a locality.
The Locality List
- This locality has map coordinates listed.
- This locality has estimated coordinates.
â - Click for references and further information on this occurrence.
? - Indicates mineral may be doubtful at this locality.
- Good crystals or important locality for species.
- World class for species or very significant.
(TL) - Type Locality for a valid mineral species.
(FRL) - First Recorded Locality for everything else (eg varieties).
All localities listed without proper references should be considered as questionable.
Australia | |
| Bottrill (2018) |
Austria | |
| Duda |
Czech Republic | |
| Ed Clopton Collection #ELC1575 |
Europe | |
| Quellmalz (1992) |
Germany | |
| Klaproth (1810) +1 other reference |
| Wittern (2001) |
| Frenzel (1874) |
USA | |
| Martins da Pedra collection |
Tin mine, Altenberg, SĂ€chsische Schweiz-Osterzgebirge, Saxony, Germany