This science ClipArt gallery offers 324 illustrations of crystals of numerous minerals. These crystalline minerals are created through natural processes, and so often times there are numerous crystal shapes for any given mineral (polycrystalline materials).
"The forms present upon it are two pyramids of different slope but each intersecting all three of the…
A Crystalline Aggregate is mass of crystal grains, devoid of their characteristic forms and closely…
"...take any three edges formed by the intersection of three faces of a crystal. These axes are called…
"A combination of cube and pyritohedron, in which it will be noted that the faces of the pyritohedron…
"A cube with its edges beveled by the faces of a tetrahexahedron." — Ford, 1912
Cubes of Iron Pyrites frequently show a striation of their planes in one direction, which is perpendicular…
Curvature of crystal planes is quite a constant property of some substances. It may be due to a very…
This crystal of Aragonite shows a method of twinning where the twinning plane may change its direction,…
"Monoclinic. Habit varied. Crystals usually nearly equidimensional in the three axial directions and…
"Pure crystalline carbon, the hardest substance known, possessing great lustre owing to its great refracting…
The diamond is cut to show the stone's brilliance, creating different parts to the cut: table, crown,…
Various types of square cut diamonds. Top row: Old square cut diamonds. Bottom row: English square cut…
Diopside is a monoclinic pyroxene mineral with composition MgCaSi2O6. It forms complete solid solution…
Dioptase is an intense emerald-green to bluish-green copper cyclosilicate mineral. It is transparent…
Crystal; This form is a combination of an icositetrahedron and a rhombic dodecahedron, where the faces…
Crystal; This form is a combination of an icositetrahedron and a rhombic dodecahedron, where the faces…
"The faces of the deltoid dodecahedron correspond to one-half those of the trisoctahedron." —…
In cases where the basal pinacoid is fixed by some physical property like cleavage, the elongation is…
In some cases, the elongation of a crystal may be in the direction of the orthogonal axis, whose position…
"...shows two crystals of tartaric acid, a a right-handed crystal of dextro-tartaric acid, and b a left-handed…
"Monoclinic. Crystals are often much elongated parallel to the ortho-axis with a prominent development…
Ferrocolumbite, also called niobite, niobite-tantalite, columbate and columbite [(Fe, Mn)(Nb, Ta)2O6]…
"Isometric. Common forms dodecahedron amd trapezohedron, often in combination. Hexoctahedron observed…
"Here the plane of projection is tangent to the sphere, and normals to all the faces are drawn fro mthe…
Goethite is a mineral composed of an iron hydrate crystallizing in soil and other low temperature environments.
Gold crystals of the form 3O3, {311}, sometimes resemble combinations of the rhombohedron and scalenohedron.
"An important part of the study of crystallography consists in the measuring and classifying of the…
Certain crystals of green fluorspar from Saxony, showing the form ∞ 03, {310}, have one half of their…
"Monoclinic. Crystals usually tabular parallel to clinopinacoid; in diamond-shaped crystals with edges…
"Monoclinic. Crystals usually tabular parallel to clinopinacoid; in diamond-shaped crystals with edges…
This image represents a twin of the monoclinic mineral Gypsum. Its twinning plane is the orthopinacoid.
"Hexagonal-rhombohedral. Crystals usually thick to thin tabular. Basal planes prominent, often showing…
"Hexagonal-rhombohedral. Crystals usually thick to thin tabular. Basal planes prominent, often showing…
"Hexagonal-rhombohedral. Crystals usually thick to thin tabular. Basal planes prominent, often showing…
This image shows a hemihedral crystal of pyroxene, whose forms are (c), (b), (a), (m), (o), and (u).
This figure shows hemimorphism in the direction of the axis of symmetry on a crystal of Pentacid Alcohol…
Hemimorphism in the direction of the vertical axis has been observed on crystals of the tetragonal salt,…
A disdyakis dodecahedron, or hexakis octahedron, is a Catalan solid and the dual to the Archimedean…
A disdyakis dodecahedron, or hexakis octahedron, is a Catalan solid and the dual to the Archimedean…
This form is bounded by forty-eight similar scalene triangles. Its solid angles are of three kinds:…
Hornblende is a complex inosilicate series of minerals. Hornblende is not a recognized mineral in its…
This figure reproduces a crystal of Hydrous Copper Sulphate whose forms are (c), (a), (b), (n), (m),…