Developing this theme, a recent theoretical literature on urban growth con-trols abstracts from the market failures considered above and portraysgrowth-control policies as a way for landowners to raise their incomes (andperhaps their quality of life) at the expense of renters.
Origin: Brazil. Price per carat: $2,000.00. Enhancement code-N No evidence of heat or other enhancement. Example. Natural Imperial Topaz. Carat Weight: 14.9ct.
A colorless, blue, yellow, brown, or pink mineral consisting largely of aluminum silicate and valued as a gem. Topaz is often found in pegmatites and is the mineral used to represent a hardness of 8 on the Mohs scale. 2. Any of various yellow gemstones, especially a yellow variety of sapphire or corundum.