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Hematite

Tabular {001} twinned on {102}

Hematite

Tabular {001} twinned on {102}

Arfvedsonite

Short prismatic [001]

Pyrite

{210} {100} {111}

Schorl

Prismatic, hemimorphic

Gjerdingenite-Fe

Tabular, pseudo-orthorhombic

Zunyite

Positive tetrahedron modified by negative tetrahedron and cube

Zunyite

Positive tetrahedron modified by negative tetrahedron and cube

Zunyite

Cube and positive tetrahedron

Zunyite

Positive tetrahedron modified by the cube

Zunyite

Penetration twin on [111]

Zunyite

Penetration twin on {100}

Zunyite

Penetration twin on [111]

Zunyite

Positive tetrahedron modified by negative tetrahedron and cube

Zunyite

Positive and negative tetrahedron

Zunyite

Positive tetrahedron

Saléeite

Thick tabular {001}

Quartz

Common habit, {100}, {101}, {011}

Vivianite

Tabular {010}, {211}

Lindgrenite

Tabular {010}

Calciohilairite

{110}, {120}, {102}

Abhurite

Thin tabular {0001}

Vesuvianite

Long prismatic

Vesuvianite

Short prismatic

Azurite

Prismatic [010]

Gismondine

{232}, multiple contact twin on the normal to {100} and composition planes approx. (100) and (001)

Pentagonite

Fivefold contact twin on {110}

Pentagonite

{110}, {201}, {001}

Cavansite

{111}, {101}

Axinite

{011}, {111}, {010}, modified