Hexagonal Dihexagonal Pyramidal Class

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Hexagonal Dihexagonal Pyramidal Class

Hexagonal Dihexagonal Pyramidal Class

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Axial Configuration	Paper Model

Hexagonal - Dihexagonal Pyramidal Class (6 m m) Mineral Species Listing

System	Class Name	AXES				Planes	Center	Hermann- Maugin Symbols
		2-Fold	3-Fold	4-Fold	6-Fold
Hexagonal	Dihexagonal Pyramidal	-	-	-	1	6	-	6mm

Synonyms: Hemimorphic Class, Zincite Type, Holohedral Hemimorphic, or Dihexagonal Polar Class.

Space Groups in class: P6₃cm, P6₃mc, P6cc, and P6mm.

Example of the Hexagonal - dihexagonal pyramidal class symmetry in stereo using JCrystal Applet by Steffen Weber.

Java Applet Not Started

Example of the Hexagonal - dihexagonal pyramidal class symmetry in stereo using Faces (version 3.5) by Georges Favreau.

**34 Minerals From the H-M Class Hexagonal - Dihexagonal Pyramidal (6 m m)**
Mineral	Space Grp	a	c	Z	Vol (Ang3)	Calc Dens
Akdalaite	P 6₃mc	5.5800	8.8600	1	238.9	3.67
Brokenhillite	P 6₃mc	13.4810	14.0840	2	2216.7	6.42
Bromellite	P 6₃mc	2.6800	4.3600	2	27.1	3.06
Cadmoselite	P 6₃mc	4.2710	6.9690	2	110.1	5.77
Calcioburbankite	P 6₃mc	10.4470	6.3180	2	597.2	3.32
Demartinite	P 6₃mc	5.6461	9.2322	2	254.9	2.87
Ekatite	P 6₃mc	12.7730	5.0510	1	713.7	4.10
Ewaldite	P 6₃mc	5.3180	12.8370	2	314.4	3.11
Ferrohogbomite-2N2S	P 6₃mc	5.7120	18.3170	1	517.6	4.07
Gengenbachite	P 6₃mc	9.1200	16.8400		1213.0
Greenockite	P 6₃mc	3.8200	6.2600	2	79.1	6.06
Gregoryite	P 6₃mc	5.2150	6.5840	2	155.1	2.46
IMA2003-019	P 6₃cm	26.5090	9.9750	2	6070.6	3.40
Iodargyrite	P 6₃mc	4.5922	7.5100	2	137.2	5.68
Jedwabite	P 6₃mmc P 6₃mc	4.8100	7.8700	1	157.7	7.46
Kamiokite	P 6₃mc	5.7820	10.0530	2	291.1	6.02
Khanneshite	P 6₃mc	10.6500	6.5800	2	646.3	3.15
Kleberite	P 6₃mcm ?	4.9400	4.5900		97.0	3.20
Magnesiohogbomite-2N2S	P 6₃mc	5.7340	18.3890	3	523.6	4.02
Magnesiohogbomite-2N3S	P 6₃mc	5.7200	18.3500	3	520.0	4.04
Magnesiotaaffeite-2N2S	P 6₃mc	5.6900	18.3000	2	513.1	3.58
Moissanite	P 6₃mc	3.0810	5.0310	2	41.4	3.22
Nolanite	P 6₃mc	5.8460	9.2540	1	273.9	4.63
Orcelite	P 6₃cm	6.7000	12.3900	6	481.7	8.89
Phosphoellenbergerite	P 6₃mc	12.4670	5.0437	1	678.9	2.35
Rambergite	P 6₃mc	3.9750	6.4330	2	88.0	3.28
Rinmanite	P 6₃mc	5.9899	9.3530	1	290.6	5.11
Sanromanite	P 6₃mc	10.5564	6.6446		641.3
Stibiopalladinite	P 6₃mc	7.6060	14.2100	6	711.9	10.85
Swedenborgite	P 6₃mc	5.4420	8.8480	2	226.9	4.28
Wurtzite	P 6₃mc	3.8200	6.2600	2	79.1	4.05
Yarlongite	P 6₃mc	18.8390	4.4960	11	1381.9	7.11
Zincite	P 6₃mc	3.2420	5.1760	2	47.1	5.66
Zincohogbomite-2N2S	P 6₃mc	5.7080	18.3100	4	516.6	4.31

(* - Mineral Name is Not IMA Approved)
(! - New Dana Classification Number Has Been Changed or Added)
(? - IMA Discredited Mineral Species Name

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