Iron-bearing Saponite
A variety of Saponite
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Formula:
Ca0.25(Mg,Fe)3((Si,Al)4O10)(OH)2 · nH2O
Colour:
Dark green
Lustre:
Vitreous, Dull
Hardness:
1
A variety of Saponite
Originally reported from Santa Monica Mts, Los Angeles Co., California, USA.
See also the Fe-dominant end-member ferrosaponite.
Originally reported from Santa Monica Mts, Los Angeles Co., California, USA.
See also the Fe-dominant end-member ferrosaponite.
Unique Identifiers
Mindat ID:
6980 (as Iron-bearing Saponite)
3528 (as Saponite)
3528 (as Saponite)
Long-form identifier:
mindat:1:1:6980:5 (as Iron-bearing Saponite)
mindat:1:1:3528:2 (as Saponite)
mindat:1:1:3528:2 (as Saponite)
GUID
(UUID V4):
(UUID V4):
fa46f3fc-071b-4702-bb17-3e7b69e28691 (as Iron-bearing Saponite)
d53f1244-e026-419c-a796-320c601e4983 (as Saponite)
d53f1244-e026-419c-a796-320c601e4983 (as Saponite)
Physical Properties of Iron-bearing Saponite
Optical Data of Iron-bearing Saponite
Type:
Biaxial (-)
RI values:
nα = 1.485 nβ = 1.565 nγ = 1.572
Max Birefringence:
δ = 0.087
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
and does not take into account mineral colouration.
Surface Relief:
Low
Dispersion:
none
Chemistry of Iron-bearing Saponite
Mindat Formula:
Ca0.25(Mg,Fe)3((Si,Al)4O10)(OH)2 · nH2O
Synonyms of Iron-bearing Saponite
Other Language Names for Iron-bearing Saponite
German:Griffithit
Spanish:Griffithita
Common Associates
Associated Minerals Based on Photo Data:
1 photo of Iron-bearing Saponite associated with Chabazite-Na | (Na2,K2,Ca,Sr,Mg)2[Al2Si4O12]2 · 12H2O |
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 Iron-bearing Saponite
mindat.org URL:
https://www.mindat.org/min-6980.html
Please feel free to link to this page.
Please feel free to link to this page.
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References for Iron-bearing Saponite
Reference List:
Localities for Iron-bearing Saponite
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.
India | |
| AmMin 88:1983–1988 (2003) |
USA | |
| Wise et al. (1988) |
Wise et al. (1988) +1 other reference | |
| Van Nostrand Reinholt Press: 440. +4 other references |
| Neuerberg (1951) |
Van Nostrand Reinholt Press: 440. +3 other references | |
griffithite +2 other references | |