Achroite
A variety of Tourmaline
This page is currently not sponsored. Click here to sponsor this page.
About Achroite
Formula:
A(D3)G6(T6O18)(BO3)3X3Z
Colour:
Colorless
Lustre:
Vitreous
Name:
From the Greek "άχρωμος" ("achroos") for "colourless".
A colourless, sometimes fibrous variety of tourmaline (usually, but not always, elbaite or fluor-elbaite).
Visit gemdat.org for gemological information about Achroite.
Visit gemdat.org for gemological information about Achroite.Unique Identifiers
Mindat ID:
454 (as Achroite)
4003 (as Tourmaline)
4003 (as Tourmaline)
Long-form identifier:
mindat:1:1:454:3 (as Achroite)
mindat:1:1:4003:3 (as Tourmaline)
mindat:1:1:4003:3 (as Tourmaline)
Similar Names
Physical Properties of Achroite
Vitreous
Colour:
Colorless
Chemistry of Achroite
Mindat Formula:
A(D3)G6(T6O18)(BO3)3X3Z
Elements listed:
Synonyms of Achroite
Other Language Names for Achroite
Common Associates
Associations Based on Photo Data:
| 4 photos of Achroite associated with Lepidolite | |
| 3 photos of Achroite associated with 'Apatite' | Ca5(PO4)3(Cl/F/OH) |
| 2 photos of Achroite associated with Quartz | SiO2 |
| 2 photos of Achroite associated with Microcline | K(AlSi3O8) |
| 2 photos of Achroite associated with Schorl | NaFe2+3Al6(Si6O18)(BO3)3(OH)3(OH) |
| 2 photos of Achroite associated with Scorodite | Fe3+AsO4 · 2H2O |
| 1 photo of Achroite associated with Dravite | NaMg3Al6(Si6O18)(BO3)3(OH)3(OH) |
| 1 photo of Achroite associated with Calcite | CaCO3 |
| 1 photo of Achroite associated with Phlogopite | KMg3(AlSi3O10)(OH)2 |
| 1 photo of Achroite associated with Cyrilovite | NaFe3+3(PO4)2(OH)4 · 2H2O |
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 Achroite
mindat.org URL:
https://www.mindat.org/min-454.html
Please feel free to link to this page.
Please feel free to link to this page.
Search Engines:
Mineral Dealers:
References for Achroite
Reference List:
Localities for Achroite
Showing 44 localities.
symbol to view information about a locality.
The Locality List
- This locality has map coordinates listed.
- This locality has estimated coordinates.
ⓘ - 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.
Afghanistan | |
| various photographs | |
| Jose Zendrera Collection |
Australia | |
| Fetherston (2010) |
Bolivia | |
| Spencer (1907) |
Czech Republic | |
| Welser |
| Historic mineral collection National ... |
| Černý |
| Novák +3 other references |
| Novák +2 other references |
India | |
| Indian Academy of Science (1970) |
Italy | |
| www.fluomin.org (n.d.) +1 other reference |
Madagascar | |
| Arliguie Michel photo and specimen | |
| Wilson (1989) |
Namibia | |
| Lavinsky (n.d.) |
Nepal | |
| - (n.d.) |
North Macedonia | |
| Jersek et al. (1999) |
Spain | |
| Angel Ortiz Maellas specimen |
| Angel Ortiz Maellas specimen | |
Sri Lanka | |
| Ceylon Aluvial Mine (Book, Co. 2002) |
UK | |
| Collins (1876) +1 other reference |
| Paul De Bondt collection. |
| Golley et al. (1995) |
| Golley et al. (1995) |
| Golley et al. (1995) | |
| Golley et al. (1995) |
| Golley et al. (1995) |
USA | |
| ... |
| Kunz (1905) |
| Gems & Gemology +2 other references |
| AmMin 63:747-749 (1978) |
| Jahns et al. (1951) |
| San Diego Mining Company (2009) | |
| Hanley |
| Rogers |
| illus. +1 other reference |
| Cristofono (n.d.) |
| Rocks and Minerals (1997) |
| |
| King et al. (6) |
| King et al. (1994) +1 other reference |
| Vandall King |
| Robinson et al. (2007) |
| Kunz (1890) | |
| Jennifer Cindrich |
Nuristan, Afghanistan