There would be no seasons as it is the tilt of the earths axis that causes the varying amounts of sunlight and temperatures. there would, however be some variation in temperature as the earths orbit is elliptical and so there would still be times of being closer to or further away from the sun.
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.
