I write mostly about public schools, but private schools have their own methods and rituals that affect many families. At this time of year, for instance, parents looking for a good private school often find themselves in trouble. They have applied to a school they had their heart set on. They have been rejected. Actually, it is their child who has been turned down, but you know what I mean. This can create panic.
Different Types of Luster. The Earth has so many minerals in different categories. Since luster is a property of minerals, luster also varies widely, so there are many different types. Mineralogists first divide the types of luster into two categories: metallic and nonmetallic.
Noun. 1. solder-an alloy (usually of lead and tin) used when melted to join two metal surfaces. alloy, metal-a mixture containing two or more metallic elements or metallic and nonmetallic elements usually fused together or dissolving into each other when molten; brass is an alloy of zinc and copper.olÂ·der. n. 1. Any of various fusible alloys, usually tin and lead, used to join metallic parts. 2. Something that joins or cements. v. solÂ·dered, solÂ·derÂ·ing, solÂ·ders. v. tr. 1. To unite or repair (parts, for example) with solder.