This figure, representing Acanthite, an orthrohombic crystal, shows a combination of the following forms:…
Iron Sulpharsenide (Arsenopyrite), bounded by ∞P, {110} (M), and 1/3P∞̆, {013} (r), forms penetration…
This figure shows the combination of forms on calcium hyposulphite (CaS_2_O_3_ + 6 aq). If we assume…
The Copper Sulphide, Chalcocite, forms three kinds of twins symmetrical to ∞P, {110}, to 4/3P∞̆,…
This figure represents a crystal of iron pyrite showing representatives of all the forms of the isometric…
"The forms present upon it are two pyramids of different slope but each intersecting all three of the…
Cubes of Iron Pyrites frequently show a striation of their planes in one direction, which is perpendicular…
"Sulphurators are instruments for distributing flowers of sulphur, for the purpose of destroying mildew.…
This illustration shows the first stage in the manufacturing of glue. The material used for making the…
This figure reproduces a crystal of Hydrous Copper Sulphate whose forms are (c), (a), (b), (n), (m),…
Orthorhombic Iron Disulphide (Marcasite) sometimes shows cyclic groups of five individuals, bounded…
It has been observed that the pentagonal dodecahedron, [∞o2/2], π {201}, on pyrite may have but six…
"The sulphur is then further purified by heating it in iron vessels (retorts) without access of air,…
"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…
"One allotropic forms of sulphur, that of a lemon-yellow brittle solid, crystallizing in orthorhombic…
"An allotrope of sulphur, when heated to 115 degrees Celcius, will cool to be yellowish-brown, needle-shaped…
Laboratory preparation of sulphur trioxide, an important step in the process of making sulphuric acid.…
"Sulphurators are instruments for distributing flowers of sulphur, for the purpose of destroying mildew.…
Diagrammatic representation of the sulphuric acid contact process. "Sulphur, or ores containing sulphur,…