Khomyakovite is an exceedingly rare mineral of the eudialyte group, with formula Na12Sr3Ca6Fe3Zr3W(Si25O73)(O,OH,H2O)3(OH,Cl)2. The original formula was extended to show the presence of both the cyclic silicate groups and M4-site silicon, according to the nomenclature of the eudialyte group. Some niobium substitutes for tungsten in khomyakovite. Khomyakovite is an iron-analogue of manganokhomyakovite, the second mineral being a bit more common. The two minerals are the only group representatives, beside taseqite, with species-defining strontium, although many other members display strontium diadochy. Khomyakovite is the third eudialyte-group mineral with essential tungsten (after johnsenite-(Ce) and manganokhomyakovite).
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| - Khomyakovita (ca)
- Khomyakovita (eu)
- Khomyakovite (it)
- Khomyakovite (en)
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| - La khomyakovita és un mineral de la classe dels silicats, que pertany al . Rep el nom en honor d'Alexander Petrovich Khomyakov (Moscou, 2 d'abril de 1933 - 12 d'octubre de 2012), de l'Institut de Mineralogia, Geoquímica i Química de cristalls d'elements rars, per les seves extenses contribucions a la mineralogia i la geoquímica de les roques alcalines. Va descriure 101 espècies minerals i va ser autor principal de 80 descripcions. (ca)
- Khomyakovita silikato motako minerala da eta eudialyte taldearen kidea da. (eu)
- Khomyakovite is an exceedingly rare mineral of the eudialyte group, with formula Na12Sr3Ca6Fe3Zr3W(Si25O73)(O,OH,H2O)3(OH,Cl)2. The original formula was extended to show the presence of both the cyclic silicate groups and M4-site silicon, according to the nomenclature of the eudialyte group. Some niobium substitutes for tungsten in khomyakovite. Khomyakovite is an iron-analogue of manganokhomyakovite, the second mineral being a bit more common. The two minerals are the only group representatives, beside taseqite, with species-defining strontium, although many other members display strontium diadochy. Khomyakovite is the third eudialyte-group mineral with essential tungsten (after johnsenite-(Ce) and manganokhomyakovite). (en)
- La khomyakovite è un minerale appartenente al gruppo dell'eudialite. (it)
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streak
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strunz
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tenacity
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unit cell
| - a = 14.30, c = 30.08 [Å] ; Z = 3 (en)
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| - Orange to orange-red (en)
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| - La khomyakovita és un mineral de la classe dels silicats, que pertany al . Rep el nom en honor d'Alexander Petrovich Khomyakov (Moscou, 2 d'abril de 1933 - 12 d'octubre de 2012), de l'Institut de Mineralogia, Geoquímica i Química de cristalls d'elements rars, per les seves extenses contribucions a la mineralogia i la geoquímica de les roques alcalines. Va descriure 101 espècies minerals i va ser autor principal de 80 descripcions. (ca)
- Khomyakovita silikato motako minerala da eta eudialyte taldearen kidea da. (eu)
- Khomyakovite is an exceedingly rare mineral of the eudialyte group, with formula Na12Sr3Ca6Fe3Zr3W(Si25O73)(O,OH,H2O)3(OH,Cl)2. The original formula was extended to show the presence of both the cyclic silicate groups and M4-site silicon, according to the nomenclature of the eudialyte group. Some niobium substitutes for tungsten in khomyakovite. Khomyakovite is an iron-analogue of manganokhomyakovite, the second mineral being a bit more common. The two minerals are the only group representatives, beside taseqite, with species-defining strontium, although many other members display strontium diadochy. Khomyakovite is the third eudialyte-group mineral with essential tungsten (after johnsenite-(Ce) and manganokhomyakovite). (en)
- La khomyakovite è un minerale appartenente al gruppo dell'eudialite. (it)
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diaphaneity
| - Transparent to translucent (en)
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