Achroite
A variety of Tourmaline
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About Achroite
Formula:
A(D3)G6(T6O18)(BO3)3X3Z
Colour:
Colorless
Lustre:
Vitreous
A variety of Tourmaline
A colorless, sometimes fibrous variety of tourmaline (usually, but not always, elbaite or fluor-elbaite).
A colorless, sometimes fibrous variety of tourmaline (usually, but not always, elbaite or fluor-elbaite).
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)
GUID
(UUID V4):
(UUID V4):
50d63239-1b8a-4421-991d-90964715bd87 (as Achroite)
9f031785-dde7-4e3d-a56e-5610364b9205 (as Tourmaline)
9f031785-dde7-4e3d-a56e-5610364b9205 (as Tourmaline)
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
Associated Minerals 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 Scorodite | Fe3+AsO4 · 2H2O |
2 photos of Achroite associated with Elbaite | Na(Li1.5Al1.5)Al6(Si6O18)(BO3)3(OH)3(OH) |
2 photos of Achroite associated with Microcline | K(AlSi3O8) |
1 photo of Achroite associated with Tourmaline | AD3G6 (T6O18)(BO3)3X3Z |
1 photo of Achroite associated with Smoky Quartz | SiO2 |
1 photo of Achroite associated with Orthoclase | K(AlSi3O8) |
1 photo of Achroite associated with Schorl | NaFe2+3Al6(Si6O18)(BO3)3(OH)3(OH) |
1 photo of Achroite associated with Dravite | NaMg3Al6(Si6O18)(BO3)3(OH)3(OH) |
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.
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Mineral Dealers:
References for Achroite
Reference List:
Localities for Achroite
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).
Struck out - Mineral was erroneously reported from this locality.
Faded * - Never found at this locality but inferred to have existed at some point in the past (e.g. from pseudomorphs).
All localities listed without proper references should be considered as questionable.
All localities listed without proper references should be considered as questionable.
Afghanistan | |
various photographs | |
| Jose Zendrera Collection |
Australia | |
| Fetherston (2010) |
Bolivia | |
| Spencer et al. (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.mineralman.com (n.d.) +1 other reference |
Madagascar | |
Arliguie Michel photo and specimen | |
| Wilson (1989) |
Namibia | |
| Rob Lavinsky photo |
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 |
| 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 |
| P Cristofono collection |
| Rocks and Minerals (1997) |
| |
| King et al. (6) |
| King et al. (1994) +1 other reference |
| Vandall King |
| Rocks & Minerals 82:472-483 |
Kunz | |
| Jennifer Cindrich |
Nuristan, Afghanistan