| mineral | description |
|---|---|
Magnesite | {101} |
{101}, modified | |
Short prismatic {110} | |
Magnetite | {100} |
{111} modified by {110} | |
Spinel law twin | |
{111}, {432}, modified by {654} | |
{100}, {111}, {110}, modified | |
{111}, highly modified | |
Malachite | Contact twin on {100} |
Contact twin on {100} | |
Manganite | Contact twin on {012} |
Prismatic {110} | |
Elongated [001] | |
Marcasite | {010}, {101}, {110}, modified |
Contact twin on {101} | |
Fourling twin on {101} | |
Repeated twin on {101} | |
Marshite | Tetrahedral |
Matlockite | Tabular {001} |
Melanophlogite | {100}, |
Mellite | {101}, {110}, {001} |
Meneghinite | Tabular {100}, elongated [001] |
Metacinnabar | {211}, modified |
Meyerhofferite | {100}, {101}, {11} |
Miargyrite | {100}, {010}, {001}, modified |
equant crystal | |
Microcline | Manebach twin |
Microlite | {111} |
{111}, {100} | |
Milarite | {110}, {102}, modified |
Millerite | prismatic {100} |
Mirabilite | Short prismatic [001] |
Molybdenite | Thick tabular {001} |
Tabular {001} | |
Molybdite | {010}, {111}, {100} |
{010}, {111}, {100}, {001} | |
Monazite | Isometric, highly modified |
{100}, {010}, {101}, {011}, modified | |
{11}, {100}, modified | |
Montroydite | Elongated [010], highly modified |
{011}, {120}, highly modified | |
Moschellandsbergite | {110}, modified |
{110}, modified | |
Muscovite | Tabular {001} |
{001}, {010}, {221} |