Politial maps show state capitals and national boundaries, while physical maps show phyiscal features such as lakes, rivers, and mountains. Topographic maps are used to visualize differences in elevation for a given area, and weather maps show current weather movements.
It is a gemstone that is found on the African continents and is made pos the silica materials and has compounds of the aluminum and iron and the potassium lithium and the sodium and this is classified as a semi-precious stone. The metamorphic rocks and the sandstone consists of these minerals and the colors of the gemstone cane alter by the heat treatment.
