This form shows a crystal of Barium Nitrate exhibiting isometric tetartohedral crystallization.

Barium Nitrate

This form shows a crystal of Barium Nitrate exhibiting isometric tetartohedral crystallization.

Isometric of a wooden block.

Isometric of a Block

Isometric of a wooden block.

Isometric of a box with a cover.

Isometric of a Box With a Cover

Isometric of a box with a cover.

Isometric of a box with a cover - end view.

Isometric of a Box With a Cover

Isometric of a box with a cover - end view.

Illustration of the isometric of a skeleton of a box.

Isometric Of A Box

Illustration of the isometric of a skeleton of a box.

Isometric of a wooden brace.

Isometric of a Brace

Isometric of a wooden brace.

Illustration of the isometric of a carpenter's bench.

Isometric Of A Carpenter's Bench

Illustration of the isometric of a carpenter's bench.

Isometric of a cube with 30°.

Isometric of a Cube

Isometric of a cube with 30°.

Isometric of a cube with circles inscribed on its faces.

Isometric of a Cube With Circles Inscribed

Isometric of a cube with circles inscribed on its faces.

Illustration of the isometric of a hollow cylinder.

Hollow Cylinder

Illustration of the isometric of a hollow cylinder.

Illustration of a shaded section of a hollow cylinder viewed from the side.

Hollow Cylinder

Illustration of a shaded section of a hollow cylinder viewed from the side.

Isometric of a cylinder.

Isometric of a Cylinder

Isometric of a cylinder.

Illustration of the plan and shaded elevation of a cylinder. The cylinder is viewed from the side and top.

Side And Top Views Of A Cylinder

Illustration of the plan and shaded elevation of a cylinder. The cylinder is viewed from the side and…

Principal forms of the isometric system: deltohedron

Deltohedron

Principal forms of the isometric system: deltohedron

Principal forms of the isometric system: dodecahedron.

Dodecahedron

Principal forms of the isometric system: dodecahedron.

"Isometric. Common forms dodecahedron amd trapezohedron, often in combination." — Ford, 1912

Garnet

"Isometric. Common forms dodecahedron amd trapezohedron, often in combination." — Ford, 1912

"Isometric. Common forms dodecahedron amd trapezohedron, often in combination." — Ford, 1912

Garnet

"Isometric. Common forms dodecahedron amd trapezohedron, often in combination." — Ford, 1912

Principal forms of the isometric system: hexoctahedron.

Hexoctahedron

Principal forms of the isometric system: hexoctahedron.

Principal forms of the isometric system: hextetrahedron.

Hextetrahedron

Principal forms of the isometric system: hextetrahedron.

Isometric outline of a house.

Isometric of a House

Isometric outline of a house.

Development of an isometric of a cube.

Development of an Isometric of a Cube

Development of an isometric of a cube.

Principal forms of the isometric system: octahedron.

Octahedron

Principal forms of the isometric system: octahedron.

Illustration of the isometric of an oblique pentagonal pyramid.

Isometric of Oblique Pentagonal Pyramid

Illustration of the isometric of an oblique pentagonal pyramid.

Illustration of a plan and elevation of an oblique pentagonal pyramid.

Oblique Pentagonal Pyramid

Illustration of a plan and elevation of an oblique pentagonal pyramid.

Principal forms of the isometric system: pyritohedron.

Pyritohedron

Principal forms of the isometric system: pyritohedron.

Principal forms of the isometric system: rectangular prism.

Rectangular Prism

Principal forms of the isometric system: rectangular prism.

Isometric of a prism with a semicircular top.

Prism With Semicircular Top

Isometric of a prism with a semicircular top.

Illustration of an oblique view of a rectangular solid/prism at 30°.

Oblique View Of Rectangular Solid

Illustration of an oblique view of a rectangular solid/prism at 30°.

Illustration of an oblique view of a rectangular solid/prism at 45°.

Oblique View Of Rectangular Solid

Illustration of an oblique view of a rectangular solid/prism at 45°.

Illustration of an oblique view of a rectangular solid/prism at 60°.

Oblique View Of Rectangular Solid

Illustration of an oblique view of a rectangular solid/prism at 60°.

Illustration of model created by combining non regular geometric solids.

Combination of Geometric Solids

Illustration of model created by combining non regular geometric solids.

"Isometric; tetrahedral. Tetrahedron form." — Ford, 1912

Sphalerite

"Isometric; tetrahedral. Tetrahedron form." — Ford, 1912

"The Sphenoidal Class corresponds in the Tetragonal system to the Tetrahedral class in the Isometric System. It is characterized by the following symmetry: The three crystallographic axes are axes of binary symmetry, and there are two vertical diagonal planes of symmetry." — Ford, 1912

Symmetry of Sphenoidal class

"The Sphenoidal Class corresponds in the Tetragonal system to the Tetrahedral class in the Isometric…

Illustration of stairs; 3-dimensional view of 4 steps. The staircase can be created by combining/stacking various sizes of rectangular solids.

Isometric of Stairs

Illustration of stairs; 3-dimensional view of 4 steps. The staircase can be created by combining/stacking…

Principal forms of the isometric system: tetragonal trisoctahedron.

Tetragonal Trisoctahedron

Principal forms of the isometric system: tetragonal trisoctahedron.

Principal forms of the isometric system: tetrahedron.

Tetrahedron

Principal forms of the isometric system: tetrahedron.

Principal forms of the isometric system: tetrahexahedron.

Tetrahexahedron

Principal forms of the isometric system: tetrahexahedron.

Principal forms of the isometric system: trigonal trisoctahedron.

Trigonal Trisoctahedron

Principal forms of the isometric system: trigonal trisoctahedron.

Principal forms of the isometric system: tristetrahedron.

Tristetrahedron

Principal forms of the isometric system: tristetrahedron.