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Titanium-bearing Omphacite
A variety of Omphacite
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Formula:
(NaaCabFe2+cMgd)(AleFe3+fTi4+gFe2+hMgj)Si2O6
a+b+c+d = 1
e+f+g=h+j = 1
a = e+f+2g
0.2 ≤ a ≤ 0.8
0.1 ≤ g
e > f
e+f+g=h+j = 1
a = e+f+2g
0.2 ≤ a ≤ 0.8
0.1 ≤ g
e > f
An omphacite with at least 0.10 Ti4+ cations in the M1 position in the clinopyroxene structure. Additional Na+ cations replacing divalent cations in the M2 position are needed to obtain charge balance.
Unique Identifiers
Mindat ID:
10400 (as Titanium-bearing Omphacite)
2991 (as Omphacite)
2991 (as Omphacite)
Long-form identifier:
mindat:1:1:10400:1 (as Titanium-bearing Omphacite)
mindat:1:1:2991:5 (as Omphacite)
mindat:1:1:2991:5 (as Omphacite)
Chemistry of Titanium-bearing Omphacite
Mindat Formula:
(NaaCabFe2+cMgd)(AleFe3+fTi4+gFe2+hMgj)Si2O6
a+b+c+d = 1
e+f+g=h+j = 1
a = e+f+2g
0.2 ≤ a ≤ 0.8
0.1 ≤ g
e > f
a+b+c+d = 1
e+f+g=h+j = 1
a = e+f+2g
0.2 ≤ a ≤ 0.8
0.1 ≤ g
e > f
Synonyms of Titanium-bearing Omphacite
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 Titanium-bearing Omphacite
mindat.org URL:
https://www.mindat.org/min-10400.html
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References for Titanium-bearing Omphacite
Reference List:
Localities for Titanium-bearing Omphacite
Showing 4 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.
Canada | |
| Curtis et al. (1975) |
Guatemala | |
| gsa.confex.com (n.d.) +2 other references |
Japan | |
| Mandarino (2002) |
| Ohe Rikosha specimens |
