Deweylite
A mixture of two or more distinct mineral species
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About Deweylite
A Mixture Of:
A mixture of various poorly ordered trioctahedral 1:1 and 2:1 layer silicates, mainly lizardite and stevensite.
Unique Identifiers
Mindat ID:
1272
Long-form identifier:
mindat:1:1:1272:6
Synonyms of Deweylite
Other Language Names for Deweylite
Common Associates
Associations Based on Photo Data:
| 13 photos of Deweylite associated with Magnesite | MgCO3 |
| 8 photos of Deweylite associated with Lizardite | Mg3(Si2O5)(OH)4 |
| 6 photos of Deweylite associated with Antigorite | Mg3(Si2O5)(OH)4 |
| 6 photos of Deweylite associated with Hydromagnesite | Mg5(CO3)4(OH)2 · 4H2O |
| 3 photos of Deweylite associated with Opal | SiO2 · nH2O |
| 2 photos of Deweylite associated with 'Manganese Oxides' | |
| 2 photos of Deweylite associated with 'Serpentinite' | |
| 2 photos of Deweylite associated with Stichtite | Mg6Cr3+2(OH)16[CO3] · 4H2O |
| 2 photos of Deweylite associated with Dolomite | CaMg(CO3)2 |
| 1 photo of Deweylite associated with Magnetite | Fe2+Fe3+2O4 |
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 Deweylite
mindat.org URL:
https://www.mindat.org/min-1272.html
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References for Deweylite
Reference List:
Localities for Deweylite
Showing 67 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.
Austria | |
| Puttner (1994) |
| Alker (1972) |
| Exel (1993) |
Czech Republic | |
| Ulrych |
Hungary | |
| Ferro et al. (2003) |
India | |
| Anantha Iyer (1987) |
Italy | |
| Giuseppe Pipino - L'antica miniera di ... |
| Antofilli et al. (1983) |
| Antofilli et al. (1983) |
| Exel (1987) |
Japan | |
| - (n.d.) |
| 上原誠一郎. (1987) |
| 辻森樹 et al. (2004) |
Slovakia | |
| Koděra et al. (1986) |
| Koděra et al. (1986) | |
| Koděra et al. (1986) | |
| Koděra et al. (1986) |
USA | |
| Hall (1958) +2 other references |
| Murdoch (1966) |
| Rogers (1918) +2 other references |
| Woodford et al. (1941) +1 other reference |
| Schaller (1935) +1 other reference |
| Schaller (1935) +3 other references | |
| Rogers (1912b) +1 other reference |
| Dana 6: 1070. |
| King et al. (1994) +1 other reference |
| Ostrander et al. (1940) |
| Pearre (1960) | |
| Stuart Herring Collection | |
| Rocks & Min.:12:247. |
| Pearre (1960) |
| Rocks & Min.:11:111 +1 other reference |
| Stuart Herring Collection |
| Ostrander et al. (1940) | |
| Rocks & Min.: 20:473. |
| Stuart Herring Collection |
| Ostrander et al. (1940) |
| Parker (2005) |
| Castor et al. (2004) |
| Castor et al. (2004) |
| Castor et al. (2004) | |
| Chester S. Lemanski |
| Manchester (1931) | |
| Manchester (1931) |
| Observed by David S. Bernstein- ... | |
| Collected by Steve Okulewicz | |
| Manchester (1931) |
| Genth (1891) +1 other reference |
| Wilson et al. (1978) |
| Ref.: Dana 6:499 |
| Genth (1891) | |
| Genth (1891) +1 other reference | |
| Gordon (1922) |
| Gordon (1922) |
| Gordon: Mineralogy of Pennysylvania | |
| Samual S. Gordon +1 other reference |
| Dana 6: 1067. |
| ... | |
| Samuel Gordon +1 other reference |
| Gordon (1922) | |
| Lapham et al. (1965) +1 other reference |
| Personally Collected 4/12/2008 | |
| A.Mathauser collection | |
| Samuel S. Gordon +1 other reference |
| Lapham et al. (1965) |
| Samuel S. Gordon +1 other reference |
| Rocks & Min. Vol. 71 (1996) |
Cedar Hill Quarry, Fulton Township, Lancaster County, Pennsylvania, USA