JASPER n.
An opaque, impure variety of quartz, of red, yellow, and other dull colors, breaking with a smooth surface. It admits of a high polish, and is used for vases, seals, snuff boxes, etc. When the colors are in stripes or bands, it is called striped or banded jasper. The Egyptian pebble is a brownish yellow jasper. Jasper…
JET n. 9 definitions
A variety of lignite, of a very compact texture and velvet black color, susceptible of a good polish, and often wrought into mourning jewelry, toys, buttons, etc. Formerly called also black amber. Jet ant (Zoöl.), a blackish European ant (Formica fuliginosa), which builds its nest of a paperlike material in the trunks…
JEWISH CALENDAR n.
ctive), 384 (regular), or 385 (perfect, or abundant) days. The calendar is complicated by various rules providing for the harmonious arrangement of festivals, etc., so that no simple perpetual calendar can be constructed. The following table gives the months in order, with the number of days assigned to each. Only thre…