Picrolite
A variety of Serpentine Subgroup
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About Picrolite
Formula:
D3[Si2O5](OH)4 D= Mg, Fe, Ni, Mn, Al, Zn
Name:
First described from Taberg,Sweden, in 1808. Named from the Greek pikros = bitter in allusion to its composition, containing magnesia, and lithos = stone.
Often considered a variety of antigorite, but picrolite from Taberg was later found to be carlosturanite, and it seems that other picrolite specimens can be other species of serpentine, including lizardite and chrysotile.
Often considered a variety of antigorite, but picrolite from Taberg was later found to be carlosturanite, and it seems that other picrolite specimens can be other species of serpentine, including lizardite and chrysotile.
Columnar or coarsely fibrous (non-asbestiform) variety of serpentine, commonly referred to as a variety of antigorite but may be other species.
Unique Identifiers
Mindat ID:
26864 (as Picrolite)
11135 (as Serpentine Subgroup)
11135 (as Serpentine Subgroup)
Long-form identifier:
mindat:1:1:26864:6 (as Picrolite)
mindat:1:1:11135:7 (as Serpentine Subgroup)
mindat:1:1:11135:7 (as Serpentine Subgroup)
Similar Names
| Microlite | A synonym of Microlite Group |
Chemistry of Picrolite
Mindat Formula:
D3[Si2O5](OH)4 D= Mg, Fe, Ni, Mn, Al, Zn
Element Weights:
Synonyms of Picrolite
Common Associates
Associations Based on Photo Data:
| 8 photos of Picrolite associated with Lizardite | Mg3(Si2O5)(OH)4 |
| 6 photos of Picrolite associated with Serpentine Subgroup | D3[Si2O5](OH)4 |
| 5 photos of Picrolite associated with Chrysotile | Mg3(Si2O5)(OH)4 |
| 4 photos of Picrolite associated with Antigorite | Mg3(Si2O5)(OH)4 |
| 3 photos of Picrolite associated with Magnetite | Fe2+Fe3+2O4 |
| 2 photos of Picrolite associated with Chlorite Group | |
| 1 photo of Picrolite associated with 'Clinochrysotile' | Mg3(Si2O5)(OH)4 |
| 1 photo of Picrolite associated with Magnesiochromite | MgCr2O4 |
| 1 photo of Picrolite associated with Chromite | Fe2+Cr3+2O4 |
| 1 photo of Picrolite associated with 'Peridotite' |
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 Picrolite
mindat.org URL:
https://www.mindat.org/min-26864.html
Please feel free to link to this page.
Please feel free to link to this page.
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References for Picrolite
Reference List:
Localities for Picrolite
Showing 46 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.
Australia | |
| Henley et al. (2001) |
| R. Bottrill |
| R Bottrill unpub report 2016 |
Canada | |
| Peatfield (n.d.) |
| Peatfield (n.d.) |
| Grand Manan Museum |
| Sabina (2000) |
| King (n.d.) |
| Sabina (2000) |
Czech Republic | |
| Ulrych |
Germany | |
| Brauns (1888) +1 other reference |
Japan | |
| Journal of the Faculty of Science et al. (2) |
| Journal of the Faculty of Science et al. (2) | |
| - (n.d.) |
Poland | |
| Lis et al. (1986) |
| Lis et al. (1986) |
| Lis et al. (1986) |
| Traube (1888) |
| Lis et al. (1986) | |
| Lis et al. (1986) |
| Traube (1888) |
Slovakia | |
| Koděra et al. (1986) |
Taiwan | |
| Huang (2018) |
USA | |
| Collected by Matthew Stanley in 2014 |
| Murdoch (1966) |
| Moritz (n.d.) |
| Ostrander et al. (1940) +2 other references |
| Ostrander et al. (1940) +1 other reference |
| Ostrander et al. (1940) |
| Ostrander et al. (1940) | |
| Ostrander et al. (1940) | |
| Western Massachusetts Geologic Resource Inventory et al. (Privately Published) |
| Western Massachusetts Geologic Resource Inventory et al. (Privately Published) | |
| Sears (1905) |
| Bud Harmon collection | |
| Heinrich et al. (2004) |
| Heinrich et al. (2004) |
| former Ronald Januzzi collection. |
| Wilson et al. (1978) |
| Genth (1891) | |
| - (inclusions in "josephinite" nuggets) |
| Samual S. Gordon +1 other reference |
| Min PA 1922 S. Gordon pg. 199 |
| Lapham et al. (1965) |
| Personally Collected 4/12/2008 | |
| Samuel S. Gordon +1 other reference |
Thetford Mines, Les Appalaches RCM, Chaudière-Appalaches, Québec, Canada