Dana Tectosilicate Classification
Si Tetrahedral Frameworks

Minerals Arranged by the New Dana Classification

This arrangement of mineral species is based on Dana's New Mineralogy by Richard V. Gaines, H. Catherine Skinner, Eugene E. Foord, Brian Mason, and Abraham Rosenzweig, with sections by Vandall T. King, Illustrations by Eric Dowty, (ISBN: 047119310-0) Copyright © 1997, John Wiley & Sons, Inc.".  This material is used by permission of John Wiley & Sons, Inc. Follow this link for a short discussion on the Dana Classification Number.

Dana Tectosilicate Classification
Si Tetrahedral Frameworks

75 Tektosilicate Minerals

75.00 Tektosilicate Minerals Without Dana Classification Numbers

75.00.00 Silica Group

75.00.00.00 Lechatelierite* SiO2 None

75.00.00 Silicate, Unclassified

75.00.00.00 Florkeite (K3Ca2Na)[Al8Si8O32]•12H2O P1 1

75.00.00 Zeolite

75.00.00.00 Alflarsenite NaCa2Be3Si4O13(OH)•2H2O P 2₁ 2

75.01 Tektosilicates Tectosilicate Si Tetrahedral Frameworks SiO2 with [4] coordinated Si

75.01.01

75.01.01.01 Cristobalite SiO2 P 4₁2₁2 4 2 2

75.01.02

75.01.02.01 Tridymite SiO2 F1 1

75.01.03

75.01.03.01 Quartz SiO2 P 3₁21,P 3₂21 3 2

75.01.04

75.01.04.01 Coesite SiO2 C 2/c 2/m

75.01.04.02 Moganite! SiO2 I2/a 2/m

75.01.05

75.01.05.01 Seifertite! SiO2 P bcn or Pb2n Ortho

75.02 Tektosilicates Tectosilicate Si Tetrahedral Frameworks SiO2 with H2O and organics

75.02.01

75.02.01.01 Opal SiO2•n(H2O) None

75.02.02 Melanophlogite Polymorphs

75.02.02.01 Melanophlogite SiO2•n(C,H,O,S) P 4₁/nbc 4/m 2/m 2/m

75.02.02.02 Melanophlogite-beta! SiO2•n(C,H,O,S) P m3n 4/m 3 2/m

75.02.02.03 IMA2008-067! SiO2•n(CH4,C2H6,C3H8,C4H10); (nmax = 3/17) Fd3 2/m 3

75.02.03

75.02.03.01 Lutecite* SiO2 I12/a1=C 2/c 2/m

75.02.04

75.02.04.01 Silhydrite 3SiO2•(H2O) P??? Ortho

75.03 Tektosilicates Tectosilicate Si Tetrahedral Frameworks with silica derivative structures

75.03.01

75.03.01.01 Virgilite LixAlxSi3-xO6 P 6₂22,P 6₄22 6 2 2