An iron-black mineral of metallic luster, occurring in small orthorhombic crystals, also massive.
Sulphur can be obtained in two crystalline modifications, in orthorhombic octahedra, or in monoclinic prisms, the former of which is the more stable at ordinary temperatures.
A dome parallel to the longer lateral axis of an orthorhombic crystal.
An orthorhombic mineral of the pyroxene group, of a grayish or greenish black color, often with a peculiar bronzelike luster (schiller) on the cleavage surface.
A leek-green or brownish mineral occurring in orthorhombic crystals.
One of the two planes of an orthorhombic crystal which are parallel to the vertical and longer lateral (macrodiagonal) axes.
A mineral of an olive-green color, commonly in orthorhombic crystals.
A mineral of the pyroxene group, orthorhombic in crystallization; often fibrous and massive; color grayish white or greenish.
A third mineral also very similar to freieslebenite in appearance is the orthorhombic andorite, AgPbSb3S6, which is mined as a silver ore at Oruro in Bolivia.
Being isomorphous with aragonite, it crystallizes in the orthorhombic system, but simple crystals are not known.
By plotting the specific volumes of these mixed crystals as ordinates, it is found that they fall on two lines, the upper corresponding to the orthorhombic crystals, the lower to the monoclinic.
Enstatite and the other orthorhombic pyroxenes are distinguished from those of the monoclinic series by their optical characters, viz.
Epsom salts crystallizes in the orthorhombic system, being isomorphous with the corresponding zinc and nickel sulphates, and also with magnesium chromate.
Fouqueite and clinozoisite are white or pale rose-red varieties containing very little iron, thus having the same chemical composition as the orthorhombic mineral zoisite (q.
Orthorhombic system, in rhombic or hexagonal scales or plates, but usually earthy or clay-like.
The orthorhombic form of the crystals, as distinct from the cubic form of pyrites, was recognized by Rome de l'Isle in 1772, though later R.
Chemically, calcite has the same composition as the orthorhombic aragonite (q.
Hot or dilute cold solutions deposit minute orthorhombic crystals of aragonite, cold saturated or moderately strong solutions, hexagonal (rhombohedral) crystals of calcite.
Correlatively in its process of dehydration to form plaster of Paris, monosymmetric gypsum is converted into the orthorhombic form before it begins to be dehydrated.
Gypsum thus crystallized is in its normal monosymmetric form, more stable under ordinary conditions than theorthorhombic form.
There is reason to suppose that the change described takes place in two stages, the gypsum first forming orthorhombic crystals and then crystallizing in the monosymmetric system.
Eudnophite, from the same region, was originally described as an orthorhombic mineral dimorphous with analcite, but has since been found to be identical with it.
As in sillimanite, its crystalline form is referable to theorthorhombic system.
The isothermal surface in a uniaxial crystal is therefore a spheroid; in cubic crystals it is a sphere; and in biaxial crystals an ellipsoid, the three axes of which coincide, in orthorhombic crystals, with the crystallographic axes.
Or again, a substance crystallizing in, say, the orthorhombic system (e.
The optical orientation of an orthorhombic crystal is completely defined by stating to which crystallographic planes the optic axial plane and the acute bisectrix are respectively parallel and perpendicular.
Optically biaxial crystals in which the three principal optical directions coincide with the three crystallographic axes--corresponding with the orthorhombic system.
In orthorhombic crystals the three principal vibration-directions coincide with the three crystallographic axes, and have therefore fixed positions in the crystal, which are the same for light of all colours and at all temperatures.
Barytes, which crystallizes in the orthorhombic system, has two sets of cleavages, viz.
Weiss's four systems (crystals belonging to the cubic system being isotropic, those of the tetragonal and hexagonal being uniaxial, and the orthorhombic being biaxial).
A mineral consisting of titanic oxide, and hence identical with rutile and octahedrite in composition, but crystallizing in the orthorhombic system.
A plane of an orthorhombic crystal which is parallel both to the vertical axis and to the shorter lateral (brachydiagonal) axis.
Isomorphous with copper-glance is the orthorhombic mineral stromeyerite, a double copper and silver sulphide, CuAgS, which occurs in abundance in the Altai Mountains.
Defn: A leek-green or brownish mineral occurring in orthorhombic crystals.
Defn: One of the two planes of an orthorhombic crystal which are parallel to the vertical and longer lateral (macrodiagonal) axes.
Defn: A mineral of an olive-green color, commonly in orthorhombic crystals.
Defn: A prism of an orthorhombic crystal between the macropinacoid and the unit prism; the corresponding pyramids are called macropyramids.
Defn: An orthorhombicmineral of the pyroxene group, of a grayish or greenish black color, often with a peculiar bronzelike luster (schiller) on the cleavage surface.
Defn: A dome parallel to the longer lateral axis of an orthorhombic crystal.
SO{2}OH [Illustration] A crystallographic examination of the acid showed it to belong to the orthorhombic system.
But even when the resorcin is present in excess at the end of the reaction some free acid is always left which may be obtained from the mother liquid in the characteristic colorless orthorhombic crystals.
Illustration] Crystals of barytes are orthorhombic and isomorphous with the strontium and lead sulphates (celestite and anglesite); they are usually very perfectly developed and present great variety of form.
It crystallizes in the orthorhombic system, and has three directions of perfect cleavage parallel to the three planes of symmetry.
It is not isomorphous with the orthorhombic barium and strontium sulphates, as might be expected from the chemical formulae.
A sulphate of barium crystallizing in orthorhombic prisms usually of tabular habit.
Crystallizes in the orthorhombic system, usually in tabular form, but crystals not common.
Orthorhombic crystals common, usually prisms capped at one end by pyramided faces and abruptly terminated at the other.
The above list will hopefully give you a few useful examples demonstrating the appropriate usage of "orthorhombic" in a variety of sentences. We hope that you will now be able to make sentences using this word.
