Mineralogy Database

Amorphous - No Crystals Class

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Amorphous - No Crystals Class ()

Amorphous crystals have no crystalline structure. The crystalline structure was never present or it has been destroyed by radiation and the crystalline structure cannot be restored by heat treatment of the mineral. 

LEGEND: Bold - (Valid Mineral Species)     ! - Dana Number Added     # - (Grandfathered as Valid}     ? - (Discredited or otherwise Invalid Species)     * - (Not Approved IMA)     See Mouse Pointer Tool Tip on Mineral Name for more Information
31 Minerals From the H-M Class Amorphous - No Crystals
Mineral Space
Grp
Z Vol (Ang3) Calc
Dens
Meas
Dens
Allophane # Unk       1.9
Amber * Unk       1.0 - 1.1
Belyankinite # Unk       2.3 - 2.4
Boldyrevite ? Unk      
Bolivarite # Unk       2.0
Cadwaladerite # Unk       1.7
Delvauxite # Unk       1.8 - 2.0
Evansite # Unk       1.9 - 2.0
Ferrisymplesite # Unk       2.9
Georgeite Unk       2.5
Gerasimovskite # Unk       2.5 - 2.6
Ilsemannite # Unk      
Jeromite ? Unk      
Jordisite # Unk      
Lechatelierite * Unk       2.5 - 2.7
Manganbelyankinite # Unk       2.4 - 2.5
Metastibnite # Unk      
Meymacite Unk       3.9 - 4.1
Moluranite Unk       4.0
Neotocite # Unk       2.8
Opal # Unk       1.9 - 2.3
Pitticite # Unk       2.5
Rauvite # Unk       2.9
Rosieresite # Unk       2.2
Rowlandite-(Y) # Unk       4.5
Santabarbaraite ! Unk       2.4
Sturtite ? Unk       2.0
Thorosteenstrupine Unk       3.0
Umbozerite Unk       3.6
Yukonite # Unk 2     2.8
Zirconolite Unk       4.8