This science ClipArt gallery offers 220 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).
"Tetragonal; tri-pyramidal. Crystals usually simple pyramids of first order. Closely resemble isometric…
"...to be cut in half by this plane (the twinned plane, reference Twinned Crystal of Gypsum) and one…
"The Sphenoidal Class corresponds in the Tetragonal system to the Tetrahedral class in the Isometric…
"Orthohombic. Habit prismatic, showing usually a combination of prism with large angle, brachypinacoid,…
"...in this figure the thicker lines are the projections of the three planes of symmetry, and on these…
"Resinous luster. Color sulphur-yellow, varying with impurities to yellow shades of green, gray, and…
"Resinous luster. Color sulphur-yellow, varying with impurities to yellow shades of green, gray, and…
"The symmetry of this class is as follows: The three crystallographic axes are axes of binary symmetry;…
"Monoclinic. Crystals varied in habit. Often with prominent basal plane which is steeply inclined and…
"Monoclinic. Crystals varied in habit. Often with prominent basal plane which is steeply inclined and…
"Orthohombic. In prismatic crystals terminated by pyramids, domes, and basal plane." — Ford, 1912
"Tourmaline crystals show the forms of the Rhombohedral Class but with hemispherical development. They…
"Tourmaline crystals show the forms of the Rhombohedral Class but with hemispherical development. They…
"Tourmaline crystals show the forms of the Rhombohedral Class but with hemispherical development. They…
"Hexagonal-rhombohedral; hemimorphic. Crystals usually prismatic, vertically striated. A triangular…
"Hexagonal-rhombohedral; hemimorphic. Crystals usually prismatic, vertically striated. A triangular…
"...the two portions are symmetrical with respect to a plane parallel to the ortho-pinacoid." -The Encyclopedia…
An illustration showing "two octahedra...united by contact along a surface parallel to an octahedron…
"Tetragonal. Prismatic in habit. Often vertically striated. Common forms are prisms of first and second…
"Tetragonal. Prismatic in habit. Often vertically striated. Common forms are prisms of first and second…
"Tetragonal; tripyramidal. Crystals usually prismatic. Prominent forms are prisms of the first and second…
"Tetragonal; tripyramidal. Crystals usually prismatic. Prominent forms are prisms of the first and second…
"A crystal of zincite with a prism terminated by a pyramid above a basal pinacoid below." — Ford,…
"Tetragonal. Crystals usually show a simple combination of prism and pyramid of the first order. The…
"Zircon, a mineral composed of of zirconium silicate, sometimes used as a gem-stone... THe mineral crystallizes…
"Zircon, a mineral composed of of zirconium silicate, sometimes used as a gem-stone... THe mineral crystallizes…