grup de minerals From Wikipedia, the free encyclopedia
El grup de la cancrinita és un gran i complex grup de minerals de la classe dels silicats format per 28 minerals alumosilicats. Aquests minerals poden cristal·litzar en tres sistemes diferents: trigonal, triclínic i hexagonal.
| Espècie | Fórmula | Sistema |
|---|---|---|
| Afghanita | (Na,Ca,K)₈(Al₆Si₆O₂₄)(Cl₂,SO₄,CO₃)₃·0,5H₂O | trigonal |
| Alloriïta | (Na,Ca,K)₂₆Ca₄(Al₆Si₆O₂₄)₄(SO₄)₆Cl₆ | trigonal |
| Balliranoïta | (Na,K)₆Ca₂(Si₆Al₆O₂₄)Cl₂(CO₃) | hexagonal |
| Betzita | Na₆Ca₂(Al₆Si₆O₂₄)Cl₄ | hexagonal |
| Biachellaïta | (Na,Ca,K)₈(Al₆Si₆O₂₄)(SO₄)₂(OH)0,5·H₂O | trigonal |
| Bystrita | Na₇Ca(Al₆Si₆O₂₄)S²⁻Cl⁻ | trigonal |
| Cancrinita | (Na,Ca,☐)₈(Al₆Si₆O₂₄)(CO₃,SO₄)₂·2H₂O | hexagonal |
| Cancrisilita | Na₇(Si₇Al₅)O₂₄(CO₃)·3H₂O | hexagonal |
| Carbobystrita | Na₈(Al₆Si₆O₂₄)(CO₃)·4H₂O | trigonal |
| Cianoxalita | Na₇(Al6-xSi6+xO24)(C₂O₄)0.5+x·5H₂O (0 < x < 0.5) | hexagonal |
| Davyna | (Na,K)₆Ca₂(Al₆Si₆O₂₄)(Cl₂,SO₄)₂ | hexagonal |
| Depmeierita | Na₈[Al₆Si₆O₂₄](PO₄,CO₃)1-x·3H₂O (x<0,5) | hexagonal |
| Fantappieïta | [Na82.5Ca33K16.5](Si99Al99O396)(SO₄)33·4H₂O | trigonal |
| Farneseïta | (Na,Ca,K)₅₆(Al₆Si₆O₂₄)₇(SO₄)₁₂·6H₂O | hexagonal |
| Franzinita | (Na,K)₆Ca₂(Al₆Si₆O₂₄)(SO₄)₂·0,5H₂O | hexagonal |
| Giuseppettita | (Na,K,Ca)₇₋₈(Al₆Si₆O₂₄)(SO₄,Cl)₁₋₂ | trigonal |
| Hidroxicancrinita | (Na,Ca,K)₈(Al₆Si₆O₂₄)(OH,CO₃)₂·2H₂O | hexagonal |
| Kircherita | Na₅Ca₂K(Al₆Si₆O₂₄)(SO₄)₂·0,33H₂O | trigonal |
| Liottita | (Na,K)₁₆Ca₈(Al₆Si₆O₂₄)₃(SO₄)₅Cl₄ | hexagonal |
| Marinellita | (Na,K)₄₂Ca₆(Al₆Si₆O₂₄)₆(SO₄)₈Cl₂·3H₂O | trigonal |
| Microsommita | [(Na,K)₆(SO₄)][CaCl₂][(Si₆Al₆O₂₄)] | hexagonal |
| Pitiglianoïta | K₂Na₆(Si₆Al₆)O₂₄(SO₄)·2H₂O | hexagonal |
| Quadridavyna | (Na,K)₆Ca₂(Al₆Si₆O₂₄)Cl₄ | hexagonal |
| Sacrofanita | (Na61K19Ca32)(Si84Al84O336)(SO₄)26Cl₂F₆· 2H₂O | hexagonal |
| Slyudyankaïta | Na28Ca₄(Si24Al24O96)(SO₄)₆(S₆)1/3(CO₂)·2H₂O | triclínic |
| Steudelita | Na₃(K17Ca₇)Ca₄(Al24Si24O96)(SO₃)₆F₆·4H₂O | hexagonal |
| Sulfhidrilbystrita | Na₅K₂Ca[Al₆Si₆O₂₄](S₅)₂(SH) | trigonal |
| Tounkita | (Na,Ca,K)₈(Al₆Si₆O₂₄)(SO₄)₂Cl·H₂O | hexagonal |
| Vishnevita | Na₈(AlSiO₄)₆O₂₄(SO₄)·2H₂O | hexagonal |
 Grup de la cancrinita | |
|---|---|
| Grup de minerals | |
 Cristalls de cancrinita, espècie que dona nom al grup  | |
| Classificació | |
| Categoria | silicats |
| Nickel-Strunz 10a ed. | 09.FB |
| Propietats | |
| Sistema cristal·lí | trigonal, triclínic i hexagonal |
| Més informació | |
| Referències | [1] |
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