mineralogy, crystal habit is the characteristic external shape of an individual crystal or aggregate of crystals. The habit of a crystal is dependent...

Acicular, in mineralogy, refers to a crystal habit composed of slender, needle-like crystals. Crystals with this habit tend to be fragile. Complete, undamaged...

or to lack obvious crystal faces altogether and appear massive. Well-formed crystals typically form as a druse (a layer of crystals lining a void), of...

minerals, except in the prism-zone of 45° and 90°. The common octahedral crystal habit of anatase, with four perfect cleavage planes, has an angle over its...

Selenite, satin spar, desert rose, and gypsum flower are crystal habit varieties of the mineral gypsum. All varieties of gypsum, including selenite and...

(needle-like) and fibrous aggregations. It has nearly the same angles between the crystal faces as does natrolite, but natrolite is orthorhombic and scolecite is...

pyrite is naturally n-type, in both crystal and thin-film forms, potentially due to sulfur vacancies in the pyrite crystal structure acting as n-dopants. During...

Beryl belongs to the hexagonal crystal system. Normally beryl forms hexagonal columns but can also occur in massive habits. As a cyclosilicate beryl incorporates...

industry) and increase carbonation. Furthermore, due to its particular crystal habit, such as rhombohedron, hexagonal prism, etc., it promotes the production...

type of mineral habit (appearance of a crystal). Prismatic minerals have crystals that show a uniform cross-section. Prismatic crystals typically have...

rosette crystal habit tends to occur when the crystals form in arid sandy conditions, such as the evaporation of a shallow salt basin. The crystals form...

There is little solubility between these minerals due to different crystal habit and inability of substitution between alkali elements and ferro-magnesian...

Diamond is a solid form of the element carbon with its atoms arranged in a crystal structure called diamond cubic. Diamond as a form of carbon is a tasteless...

mineral (natural) form of sodium chloride (NaCl). Halite forms isometric crystals. The mineral is typically colorless or white, but may also be light blue...

almost complete transparency to an almost-opaque brownish-gray or black crystals. The color of smoky quartz is produced when natural radiation, emitted...

iron pyrite which can lead to acid mine drainage.[citation needed] The crystal habit, hardness, density, and garlic odour when struck are diagnostic. Arsenopyrite...

this use is limited by its rarity, which is compounded by its poor crystal habit. These factors make eudialyte of primary interest as a collector's mineral...

atmosphere Habit (biology), aspects of behaviour or structure Crystal habit, the characteristic external shape of an individual crystal Drug habit, drug addiction...

of multiple open or closed forms. A crystal's habit is its visible external shape. This is determined by the crystal structure (which restricts the possible...

of fluoroedenite. Edenite is a member of the monoclinic crystal system and is in the crystal class 2/m (space group C2/m). This means crystalline edenite...

composition and crystal structure, the description of a mineral species usually includes its common physical properties such as habit, hardness, lustre...

of green and violet paints. Black, manganese oxides with a dendritic crystal habit often found on fracture or rock surfaces are often assumed to be pyrolusite...

In geology and mineralogy, druse is a crystal habit represented by the coating of fine crystals on a rock fracture surface, or vein or within a vug or...

crystal structure, which named after the mineral. This structure is a member of the hextetrahedral crystal class (space group F43m). In the crystal structure...

includes true fivefold rotation axes. The name crystal pyrite comes from one of the two common crystal habits shown by pyrite (the other one being the cube)...

a material is described by polymorphism and other variables such as crystal habit, amorphous fraction or crystallographic defects. Polymorphs have different...

1893. At first, he mistakenly identified the crystals as diamonds, but in 1904 he identified the crystals as silicon carbide. Artificial silicon carbide...

synthetically in laboratories for industrial or decorative purposes in large crystal boules. Because of the remarkable hardness of sapphires – 9 on the Mohs...

Wolframite in its crystalline form also displays lamellar and prismatic habit. The name "wolframite" is derived from German "wolf rahm", the name given...

based on relative humidity. Chalcophyllite crystallizes in the trigonal crystal class, 3 2/m with space group R 3m or 3 with space group R 3. Some authors...