Common examples include: wulfenite Read more.

Common examples include: bauxite, gibbsite Read more.

Common examples include: aragonite, calcite Read more.

Common examples include: halite, calcite, synthetic bismuth A hopper crystal is a form of crystal, the shape of which resembles that of a pyramidal hopper container. The edges of hopper crystals are fully developed, but the interior… Read more.

Common examples include: andradite, bornite, scheelite, quartz Read more.

Common examples include: muscovite, biotite, lepidolite, molybdenite Read more.

Common examples include: many zeolites, byssolite, millerite, okenite Read more.

Common examples include: serpentine group, actinolite, kyanite, gypsum, nitratine, tremolite (i.e. asbestos) Asbestiform is a crystal habit. It describes a mineral that grows in a fibrous aggregate of high tensile strength, flexible, long, and thin crystals that readily separate. The… Read more.

Common examples: azurite, celestine, calcite, uvarovite, malachite, quartz In geology, druse refers to a coating of fine crystals on a rock fracture surface or vein or within a vug or geode. See also References Read more.

Common examples include: romanechite, magnesite, native copper Read more.