Analysis of "Yogi" rock again using the APXS showed that it was a basaltic rock, more primitive than "Barnacle Bill". Yogi's shape and texture show that it was probably deposited there by a flood.
It is made up of mainly basaltic rocks. We'll be running into a lot of basaltic rocks, and you probably know these best as the stuff that comes out of volcanoes - lava, basically. These rocks are typically dark in color and have high densities.
[43] Theories of asteroid formation predict that objects the size of Vesta or larger should form crusts and mantles, which would be composed mainly of basaltic rock, ...
Venus has a rocky crust, a thick basaltic rock mantle and a nickel-iron core. There is no surface water. The surface of Venus has been mapped through its cloud layer using radar.
You may have seen some dark gray basaltic rocks scattered across Earth's surface, especially near volcanoes. Basalt is formed as mantle material upwells from Earth's interior as lava, then cools and solidifies.
In the highlands the majority of the rocks are breccias—conglomerates formed from basaltic rock and often studded with small, green, glassy spheres.
Angrites, named for the Angra dos Reis meteorite, which fell in Rio de Janeiro, Brazil, in early 1869, are basaltic rocks, often containing porous areas and many round vesicles (small cavities) with diameters up to 2.5 cm.
The exposed portions of the rock are similar in color to basaltic rocks on Earth. This rock may be a fragment of a lava flow that was later ejected by an impact crater.
Granite is created when basaltic rocks are forced down into the fiery interior of the planet by the process of plate tectonics, which builds and destroys the Earth's crust in an endless cycle.
The maria are vast impact basins which have been filled with basaltic rocks some 3000 million years ago. Much of the Moon's surface is covered with craters. These are the result of impacts by meteors.
The rock is very soft unlike the basaltic rocks on the plain of Gusev Crater. On-the-spot analysis with the alpha particle X-ray spectrometer revealed relatively high levels of bromine, sulfur and chlorine inside the rock.
Vesta
Catalogue No.: 4
Dimensions: 525km in diameter.
Density: 3.3g/cm cubed
Class: V
Rotation: 5.34 hours.
The largest of the V class asteroids (it is made of basaltic rock) and also one of the first discovered.
from analyzing the rock's surface and interior with Spirit's alpha particle X-ray spectrometer and finding relatively high levels of bromine, sulfur and chlorine inside the rock. He said, "This is also a very soft rock, not like the basaltic rocks ...
For example, the asteroid Vesta, whose surface appears to be basaltic rock, is widely believed to be the parent body of the meteorites known as basaltic achondrite HEDs, a grouping of the related howardite, eucrite, and diogenite meteorite types.
Lighter stony minerals rose and solidified to become basaltic rocks, fragments of which were subsequently broken off by impacts and hurled into space.
 See also: Basalt, Planet, Earth, Mars, Crater
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