Calcite – Eskifjordur, Iceland. This remote area of Iceland is the type locality for the Iceland Spar variety of calcite (CaCO3; type locality is the place where a mineral or rock best exemplifies its standard description, often where it was first discovered). Iceland Spar calcite is exceptionally clear and optically transparent, whereas other types of calcite can have a wide range of colors and translucencies (see photo in the Problem 10 placemark). Given this, which of the following is not a diagnostic property for calcite? a. cleavage at three directions not at ~90°.
b. hardness of 3.
c. color.
d. effervesces (forms CO2 bubbles) with hydrochloric acid.

What is the latitude and longitude (to the nearest degree) of the following cities? a. kansas city b. philadelphia c. reno d. minneapolis use the map to find the names of cities with the following coordinates. a. 30°n, 96°w b. 35°n, 95°w c. 26°n, 80°w d. 42°n, 88°w how many kilometers north of the equator is washington, dc? approximately how far north of houston is kansas city? use degrees of latitude to calculate your answer. show your work. which city is closer to greenwich, england: los angeles or xi’an, china (34°n, 109°e)? explain your answer. how many degrees of longitude separate las vegas from the international date line, which is at 180° longitude?