sulphur

• The red-lead separates itself from the sulphur and adheres to the negative portion of the stone, whilst the separated sulphur is at once attracted to the positive end, so that the golden-coloured mixture becomes slowly transformed into its two separate components--the brilliant yellow sulphur, and the equally brilliant red-lead. —  The Chemistry, Properties and Tests of Precious Stones
• When sulphur crystallizes from its solution in carbon disulphide it separates in crystals which have the same color and melting point as roll sulphur, and are rhombic in shape. —  An Elementary Study of Chemistry
• When melted sulphur is allowed to cool until a part of the liquid has solidified, and the remaining liquid is then poured off, it is found that the solid sulphur remaining in the vessel has assumed the form of fine needle-shaped crystals. —  An Elementary Study of Chemistry
• Flowers of sulphur, the preparation of which has been described, consists of a mixture of rhombic crystals and amorphous particles. —  An Elementary Study of Chemistry
• A few substances, of which sulphur is an example, crystallize in two different systems, and the crystals differ in such physical properties as melting point and density. —  An Elementary Study of Chemistry

Used in the Same Context